Merge pull request #44 from fgbm/main

Fix: connectivity check for hosts using ProxyJump or ProxyCommand

README.md

@@ -44,7 +44,7 @@ SSHM is a beautiful command-line tool that transforms how you manage and connect
 - **🔄 Automatic Conversion** - Seamlessly converts between command-line and config formats
 - **🔄 Automatic Backups** - Backup configurations automatically before changes
 - **✅ Validation** - Prevent configuration errors with built-in validation
-- **🔗 ProxyJump Support** - Secure connection tunneling through bastion hosts
+- **🔗 ProxyJump/ProxyCommand Support** - Secure connection tunneling through bastion hosts
 - **⌨️ Keyboard Shortcuts** - Power user navigation with vim-like shortcuts
 - **🌐 Cross-platform** - Supports Linux, macOS (Intel & Apple Silicon), and Windows
 - **⚡ Lightweight** - Single binary with no dependencies, zero configuration required
@@ -129,6 +129,7 @@ The interactive forms will guide you through configuration:
 - **Port** - SSH port (default: 22)
 - **Identity File** - Private key path
 - **ProxyJump** - Jump server for connection tunneling
+- **ProxyCommand** - Jump command for connection tunneling
 - **SSH Options** - Additional SSH options in `-o` format (e.g., `-o Compression=yes -o ServerAliveInterval=60`)
 - **Tags** - Comma-separated tags for organization
 
@@ -228,6 +229,15 @@ sshm
 # Connect directly to a specific host (with history tracking)
 sshm my-server
 
+# Execute a command on a remote host
+sshm my-server uptime
+
+# Execute command with arguments
+sshm my-server ls -la /var/log
+
+# Force TTY allocation for interactive commands
+sshm -t my-server sudo systemctl restart nginx
+
 # Launch TUI with custom SSH config file
 sshm -c /path/to/custom/ssh_config
 
@@ -258,6 +268,17 @@ sshm move my-server -c /path/to/custom/ssh_config
 # Search for hosts (interactive filter)
 sshm search
 
+# Print machine-readable info (JSON) for scripting
+sshm info prod-server
+sshm info prod-server --pretty
+
+# With a custom SSH config file
+sshm -c /path/to/custom/ssh_config info prod-server
+
+# Pipe to jq
+sshm info prod-server | jq -r '.result.target.hostname'
+sshm info prod-server | jq -r '.result.target.user'
+
 # Show version information (includes update check)
 sshm --version
 
@@ -265,6 +286,66 @@ sshm --version
 sshm --help
 ```
 
+### Host Info (JSON)
+
+`sshm info <hostname>` prints a single JSON object to stdout so you can script against it with `jq`.
+
+```bash
+# Extract fields
+sshm info prod-server | jq -r '.result.target.hostname'
+sshm info prod-server | jq -r '.result.target.port'
+
+# Check not-found (exit code 2)
+sshm info does-not-exist | jq -r '.error.code'
+```
+
+### Shell Completion
+
+SSHM supports shell completion for host names, making it easy to connect to hosts without typing full names:
+
+```bash
+sshm <TAB>           # Lists all available hosts
+sshm pro<TAB>        # Completes to hosts starting with "pro" (e.g., prod-server)
+```
+
+**Setup Instructions:**
+
+**Bash:**
+```bash
+# Enable for current session
+source <(sshm completion bash)
+
+# Enable permanently (add to ~/.bashrc)
+echo 'source <(sshm completion bash)' >> ~/.bashrc
+```
+
+**Zsh:**
+```bash
+# Enable for current session
+source <(sshm completion zsh)
+
+# Enable permanently (add to ~/.zshrc)
+echo 'source <(sshm completion zsh)' >> ~/.zshrc
+```
+
+**Fish:**
+```bash
+# Enable for current session
+sshm completion fish | source
+
+# Enable permanently
+sshm completion fish > ~/.config/fish/completions/sshm.fish
+```
+
+**PowerShell:**
+```powershell
+# Enable for current session
+sshm completion powershell | Out-String | Invoke-Expression
+
+# Enable permanently (add to your PowerShell profile)
+Add-Content $PROFILE 'sshm completion powershell | Out-String | Invoke-Expression'
+```
+
 ### Direct Host Connection
 
 SSHM supports direct connection to hosts via the command line, making it easy to integrate into your existing workflow:
@@ -285,6 +366,33 @@ sshm web-01
 - **Error handling** - Clear messages if host doesn't exist or configuration issues
 - **Config file support** - Works with custom config files using `-c` flag
 
+### Remote Command Execution
+
+Execute commands on remote hosts without opening an interactive shell:
+
+```bash
+# Execute a single command
+sshm prod-server uptime
+
+# Execute command with arguments
+sshm prod-server ls -la /var/log
+
+# Check disk usage
+sshm prod-server df -h
+
+# View logs (pipe to local commands)
+sshm prod-server 'cat /var/log/nginx/access.log' | grep 404
+
+# Force TTY allocation for interactive commands (sudo, vim, etc.)
+sshm -t prod-server sudo systemctl restart nginx
+```
+
+**Features:**
+- **Exit code propagation** - Remote command exit codes are passed through
+- **TTY support** - Use `-t` flag for commands requiring terminal interaction
+- **Pipe-friendly** - Output can be piped to local commands for processing
+- **History tracking** - Command executions are recorded in connection history
+
 ### Backup Configuration
 
 SSHM automatically creates backups of your SSH configuration files before making any changes to ensure your configurations are safe.
@@ -504,6 +612,7 @@ Host backend-prod
     User app
     Port 22
     ProxyJump bastion.company.com
+    ProxyCommand ssh -W %h:%p Jumphost
     IdentityFile ~/.ssh/production_key
     Compression yes
     ServerAliveInterval 300
@@ -520,6 +629,7 @@ SSHM supports all standard SSH configuration options:
 - `Port` - SSH port number
 - `IdentityFile` - Path to private key file
 - `ProxyJump` - Jump server for connection tunneling (e.g., `user@jumphost:port`)
+- `ProxyCommand` - Jump command for connection tunneling (e.g, `ssh -W %h:%p Jumphost`)
 - `Tags` - Custom tags (SSHM extension)
 
 **Additional SSH Options:**

cmd/completion.go

@@ -0,0 +1,60 @@
+package cmd
+
+import (
+	"os"
+
+	"github.com/spf13/cobra"
+)
+
+var completionCmd = &cobra.Command{
+	Use:   "completion [bash|zsh|fish|powershell]",
+	Short: "Generate shell completion script",
+	Long: `Generate shell completion script for sshm.
+
+To load completions:
+
+Bash:
+  $ source <(sshm completion bash)
+  
+  # To load completions for each session, add to your ~/.bashrc:
+  # echo 'source <(sshm completion bash)' >> ~/.bashrc
+
+Zsh:
+  $ source <(sshm completion zsh)
+  
+  # To load completions for each session, add to your ~/.zshrc:
+  # echo 'source <(sshm completion zsh)' >> ~/.zshrc
+
+Fish:
+  $ sshm completion fish | source
+  
+  # To load completions for each session:
+  $ sshm completion fish > ~/.config/fish/completions/sshm.fish
+
+PowerShell:
+  PS> sshm completion powershell | Out-String | Invoke-Expression
+  
+  # To load completions for each session, add to your PowerShell profile:
+  # Add-Content $PROFILE 'sshm completion powershell | Out-String | Invoke-Expression'
+`,
+	DisableFlagsInUseLine: true,
+	ValidArgs:             []string{"bash", "zsh", "fish", "powershell"},
+	Args:                  cobra.MatchAll(cobra.ExactArgs(1), cobra.OnlyValidArgs),
+	RunE: func(cmd *cobra.Command, args []string) error {
+		switch args[0] {
+		case "bash":
+			return cmd.Root().GenBashCompletionV2(os.Stdout, true)
+		case "zsh":
+			return cmd.Root().GenZshCompletion(os.Stdout)
+		case "fish":
+			return cmd.Root().GenFishCompletion(os.Stdout, true)
+		case "powershell":
+			return cmd.Root().GenPowerShellCompletionWithDesc(os.Stdout)
+		}
+		return nil
+	},
+}
+
+func init() {
+	RootCmd.AddCommand(completionCmd)
+}

cmd/completion_test.go

@@ -0,0 +1,285 @@
+package cmd
+
+import (
+	"bytes"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"github.com/spf13/cobra"
+)
+
+func TestCompletionCommand(t *testing.T) {
+	if completionCmd.Use != "completion [bash|zsh|fish|powershell]" {
+		t.Errorf("Expected Use 'completion [bash|zsh|fish|powershell]', got '%s'", completionCmd.Use)
+	}
+
+	if completionCmd.Short != "Generate shell completion script" {
+		t.Errorf("Expected Short description, got '%s'", completionCmd.Short)
+	}
+}
+
+func TestCompletionCommandValidArgs(t *testing.T) {
+	expected := []string{"bash", "zsh", "fish", "powershell"}
+
+	if len(completionCmd.ValidArgs) != len(expected) {
+		t.Errorf("Expected %d valid args, got %d", len(expected), len(completionCmd.ValidArgs))
+	}
+
+	for i, arg := range expected {
+		if completionCmd.ValidArgs[i] != arg {
+			t.Errorf("Expected ValidArgs[%d] to be '%s', got '%s'", i, arg, completionCmd.ValidArgs[i])
+		}
+	}
+}
+
+func TestCompletionCommandRegistered(t *testing.T) {
+	found := false
+	for _, cmd := range RootCmd.Commands() {
+		if cmd.Name() == "completion" {
+			found = true
+			break
+		}
+	}
+
+	if !found {
+		t.Error("Expected 'completion' command to be registered")
+	}
+}
+
+func TestCompletionBashOutput(t *testing.T) {
+	oldStdout := os.Stdout
+	r, w, _ := os.Pipe()
+	os.Stdout = w
+
+	RootCmd.SetArgs([]string{"completion", "bash"})
+	err := RootCmd.Execute()
+
+	w.Close()
+	os.Stdout = oldStdout
+
+	if err != nil {
+		t.Errorf("Expected no error for bash completion, got %v", err)
+	}
+
+	var buf bytes.Buffer
+	buf.ReadFrom(r)
+	output := buf.String()
+
+	if !strings.Contains(output, "bash completion") || !strings.Contains(output, "sshm") {
+		t.Error("Bash completion output should contain bash completion markers and sshm")
+	}
+}
+
+func TestCompletionZshOutput(t *testing.T) {
+	oldStdout := os.Stdout
+	r, w, _ := os.Pipe()
+	os.Stdout = w
+
+	RootCmd.SetArgs([]string{"completion", "zsh"})
+	err := RootCmd.Execute()
+
+	w.Close()
+	os.Stdout = oldStdout
+
+	if err != nil {
+		t.Errorf("Expected no error for zsh completion, got %v", err)
+	}
+
+	var buf bytes.Buffer
+	buf.ReadFrom(r)
+	output := buf.String()
+
+	if !strings.Contains(output, "compdef") || !strings.Contains(output, "sshm") {
+		t.Error("Zsh completion output should contain compdef and sshm")
+	}
+}
+
+func TestCompletionFishOutput(t *testing.T) {
+	oldStdout := os.Stdout
+	r, w, _ := os.Pipe()
+	os.Stdout = w
+
+	RootCmd.SetArgs([]string{"completion", "fish"})
+	err := RootCmd.Execute()
+
+	w.Close()
+	os.Stdout = oldStdout
+
+	if err != nil {
+		t.Errorf("Expected no error for fish completion, got %v", err)
+	}
+
+	var buf bytes.Buffer
+	buf.ReadFrom(r)
+	output := buf.String()
+
+	if !strings.Contains(output, "complete") || !strings.Contains(output, "sshm") {
+		t.Error("Fish completion output should contain complete command and sshm")
+	}
+}
+
+func TestCompletionPowershellOutput(t *testing.T) {
+	oldStdout := os.Stdout
+	r, w, _ := os.Pipe()
+	os.Stdout = w
+
+	RootCmd.SetArgs([]string{"completion", "powershell"})
+	err := RootCmd.Execute()
+
+	w.Close()
+	os.Stdout = oldStdout
+
+	if err != nil {
+		t.Errorf("Expected no error for powershell completion, got %v", err)
+	}
+
+	var buf bytes.Buffer
+	buf.ReadFrom(r)
+	output := buf.String()
+
+	if !strings.Contains(output, "Register-ArgumentCompleter") || !strings.Contains(output, "sshm") {
+		t.Error("PowerShell completion output should contain Register-ArgumentCompleter and sshm")
+	}
+}
+
+func TestCompletionInvalidShell(t *testing.T) {
+	RootCmd.SetArgs([]string{"completion", "invalid"})
+	err := RootCmd.Execute()
+
+	if err == nil {
+		t.Error("Expected error for invalid shell type")
+	}
+}
+
+func TestCompletionNoArgs(t *testing.T) {
+	RootCmd.SetArgs([]string{"completion"})
+	err := RootCmd.Execute()
+
+	if err == nil {
+		t.Error("Expected error when no shell type provided")
+	}
+}
+
+func TestValidArgsFunction(t *testing.T) {
+	if RootCmd.ValidArgsFunction == nil {
+		t.Fatal("Expected ValidArgsFunction to be set on RootCmd")
+	}
+}
+
+func TestValidArgsFunctionWithSSHConfig(t *testing.T) {
+	tmpDir := t.TempDir()
+	testConfigFile := filepath.Join(tmpDir, "config")
+
+	sshConfig := `Host prod-server
+    HostName 192.168.1.1
+    User admin
+
+Host dev-server
+    HostName 192.168.1.2
+    User developer
+
+Host staging-db
+    HostName 192.168.1.3
+    User dbadmin
+`
+	err := os.WriteFile(testConfigFile, []byte(sshConfig), 0600)
+	if err != nil {
+		t.Fatalf("Failed to write test config: %v", err)
+	}
+
+	originalConfigFile := configFile
+	defer func() { configFile = originalConfigFile }()
+	configFile = testConfigFile
+
+	tests := []struct {
+		name       string
+		toComplete string
+		args       []string
+		wantCount  int
+		wantHosts  []string
+	}{
+		{
+			name:       "empty prefix returns all hosts",
+			toComplete: "",
+			args:       []string{},
+			wantCount:  3,
+			wantHosts:  []string{"prod-server", "dev-server", "staging-db"},
+		},
+		{
+			name:       "prefix filters hosts",
+			toComplete: "prod",
+			args:       []string{},
+			wantCount:  1,
+			wantHosts:  []string{"prod-server"},
+		},
+		{
+			name:       "prefix case insensitive",
+			toComplete: "DEV",
+			args:       []string{},
+			wantCount:  1,
+			wantHosts:  []string{"dev-server"},
+		},
+		{
+			name:       "no match returns empty",
+			toComplete: "nonexistent",
+			args:       []string{},
+			wantCount:  0,
+			wantHosts:  []string{},
+		},
+		{
+			name:       "already has host arg returns nothing",
+			toComplete: "",
+			args:       []string{"existing-host"},
+			wantCount:  0,
+			wantHosts:  []string{},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			completions, directive := RootCmd.ValidArgsFunction(RootCmd, tt.args, tt.toComplete)
+
+			if len(completions) != tt.wantCount {
+				t.Errorf("Expected %d completions, got %d: %v", tt.wantCount, len(completions), completions)
+			}
+
+			if directive != cobra.ShellCompDirectiveNoFileComp {
+				t.Errorf("Expected ShellCompDirectiveNoFileComp, got %v", directive)
+			}
+
+			for _, wantHost := range tt.wantHosts {
+				found := false
+				for _, comp := range completions {
+					if comp == wantHost {
+						found = true
+						break
+					}
+				}
+				if !found {
+					t.Errorf("Expected completion '%s' not found in %v", wantHost, completions)
+				}
+			}
+		})
+	}
+}
+
+func TestValidArgsFunctionWithNonExistentConfig(t *testing.T) {
+	tmpDir := t.TempDir()
+	nonExistentConfig := filepath.Join(tmpDir, "nonexistent")
+
+	originalConfigFile := configFile
+	defer func() { configFile = originalConfigFile }()
+	configFile = nonExistentConfig
+
+	completions, directive := RootCmd.ValidArgsFunction(RootCmd, []string{}, "")
+
+	if directive != cobra.ShellCompDirectiveNoFileComp {
+		t.Errorf("Expected ShellCompDirectiveNoFileComp for non-existent config, got %v", directive)
+	}
+
+	if len(completions) != 0 {
+		t.Errorf("Expected empty completions for non-existent config, got %v", completions)
+	}
+}

cmd/info.go

@@ -0,0 +1,199 @@
+package cmd
+
+import (
+	"encoding/json"
+	"io"
+	"os"
+	"strconv"
+	"strings"
+
+	"github.com/Gu1llaum-3/sshm/internal/config"
+
+	"github.com/spf13/cobra"
+)
+
+type infoResponse struct {
+	Schema   string      `json:"schema"`
+	OK       bool        `json:"ok"`
+	Hostname string      `json:"hostname"`
+	Result   *infoResult `json:"result"`
+	Error    *infoError  `json:"error"`
+}
+
+type infoResult struct {
+	CanonicalName string      `json:"canonical_name"`
+	Target        infoTarget  `json:"target"`
+	IdentityFile  *string     `json:"identity_file"`
+	ProxyJump     *string     `json:"proxy_jump"`
+	ProxyCommand  *string     `json:"proxy_command"`
+	Options       *string     `json:"options"`
+	Tags          []string    `json:"tags"`
+	RemoteCommand *string     `json:"remote_command"`
+	RequestTTY    *string     `json:"request_tty"`
+	Source        *infoSource `json:"source"`
+}
+
+type infoTarget struct {
+	Host     string  `json:"host"`
+	Hostname *string `json:"hostname"`
+	User     *string `json:"user"`
+	Port     *int    `json:"port"`
+}
+
+type infoSource struct {
+	File string `json:"file"`
+	Line int    `json:"line"`
+}
+
+type infoError struct {
+	Code    string          `json:"code"`
+	Message string          `json:"message"`
+	Details json.RawMessage `json:"details"`
+}
+
+func maybeString(v string) *string {
+	trimmed := strings.TrimSpace(v)
+	if trimmed == "" {
+		return nil
+	}
+	return &trimmed
+}
+
+func maybePort(v string) (*int, error) {
+	trimmed := strings.TrimSpace(v)
+	if trimmed == "" {
+		return nil, nil
+	}
+	port, err := strconv.Atoi(trimmed)
+	if err != nil {
+		return nil, err
+	}
+	return &port, nil
+}
+
+func writeInfoJSON(out io.Writer, pretty bool, resp infoResponse) {
+	var b []byte
+	var err error
+	if pretty {
+		b, err = json.MarshalIndent(resp, "", "  ")
+	} else {
+		b, err = json.Marshal(resp)
+	}
+	if err != nil {
+		_, _ = io.WriteString(out, `{"schema":"sshm.info.v1","ok":false,"hostname":"","result":null,"error":{"code":"INTERNAL","message":"failed to marshal JSON","details":null}}\n`)
+		return
+	}
+	_, _ = out.Write(append(b, '\n'))
+}
+
+func runInfo(out io.Writer, hostnameArg string, cfgFile string, pretty bool) int {
+	resp := infoResponse{
+		Schema:   "sshm.info.v1",
+		OK:       false,
+		Hostname: hostnameArg,
+		Result:   nil,
+		Error:    nil,
+	}
+
+	var host *config.SSHHost
+	var err error
+	if cfgFile != "" {
+		host, err = config.GetSSHHostFromFile(hostnameArg, cfgFile)
+	} else {
+		host, err = config.GetSSHHost(hostnameArg)
+	}
+	if err != nil {
+		code := 1
+		errCode := "CONFIG_ERROR"
+		msg := err.Error()
+		if strings.Contains(msg, "not found") {
+			code = 2
+			errCode = "NOT_FOUND"
+		}
+
+		resp.Error = &infoError{Code: errCode, Message: msg, Details: nil}
+		writeInfoJSON(out, pretty, resp)
+		return code
+	}
+
+	port, portErr := maybePort(host.Port)
+	if portErr != nil {
+		resp.Error = &infoError{Code: "CONFIG_ERROR", Message: "invalid port in host configuration", Details: nil}
+		writeInfoJSON(out, pretty, resp)
+		return 1
+	}
+
+	res := infoResult{
+		CanonicalName: host.Name,
+		Target: infoTarget{
+			Host:     hostnameArg,
+			Hostname: maybeString(host.Hostname),
+			User:     maybeString(host.User),
+			Port:     port,
+		},
+		IdentityFile:  maybeString(host.Identity),
+		ProxyJump:     maybeString(host.ProxyJump),
+		ProxyCommand:  maybeString(host.ProxyCommand),
+		Options:       maybeString(host.Options),
+		Tags:          host.Tags,
+		RemoteCommand: maybeString(host.RemoteCommand),
+		RequestTTY:    maybeString(host.RequestTTY),
+		Source: &infoSource{
+			File: host.SourceFile,
+			Line: host.LineNumber,
+		},
+	}
+
+	resp.OK = true
+	resp.Result = &res
+	writeInfoJSON(out, pretty, resp)
+	return 0
+}
+
+var infoPretty bool
+
+var infoCmd = &cobra.Command{
+	Use:           "info <hostname>",
+	Short:         "Print machine-readable information about a host",
+	Long:          "Print machine-readable information (JSON) about a configured SSH host.",
+	Args:          cobra.ExactArgs(1),
+	SilenceUsage:  true,
+	SilenceErrors: true,
+	ValidArgsFunction: func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
+		if len(args) != 0 {
+			return nil, cobra.ShellCompDirectiveNoFileComp
+		}
+
+		var hosts []config.SSHHost
+		var err error
+		if configFile != "" {
+			hosts, err = config.ParseSSHConfigFile(configFile)
+		} else {
+			hosts, err = config.ParseSSHConfig()
+		}
+		if err != nil {
+			return nil, cobra.ShellCompDirectiveError
+		}
+
+		var completions []string
+		toCompleteLower := strings.ToLower(toComplete)
+		for _, host := range hosts {
+			if strings.HasPrefix(strings.ToLower(host.Name), toCompleteLower) {
+				completions = append(completions, host.Name)
+			}
+		}
+		return completions, cobra.ShellCompDirectiveNoFileComp
+	},
+	RunE: func(cmd *cobra.Command, args []string) error {
+		exitCode := runInfo(cmd.OutOrStdout(), args[0], configFile, infoPretty)
+		if exitCode != 0 {
+			os.Exit(exitCode)
+		}
+		return nil
+	},
+}
+
+func init() {
+	infoCmd.Flags().BoolVar(&infoPretty, "pretty", false, "Pretty-print JSON output")
+	RootCmd.AddCommand(infoCmd)
+}

cmd/info_test.go

@@ -0,0 +1,321 @@
+package cmd
+
+import (
+	"bytes"
+	"encoding/json"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"github.com/spf13/cobra"
+)
+
+type infoResponseForTest struct {
+	Schema   string             `json:"schema"`
+	OK       bool               `json:"ok"`
+	Hostname string             `json:"hostname"`
+	Result   *infoResultForTest `json:"result"`
+	Error    *infoErrorForTest  `json:"error"`
+}
+
+type infoResultForTest struct {
+	CanonicalName string             `json:"canonical_name"`
+	Target        infoTargetForTest  `json:"target"`
+	IdentityFile  *string            `json:"identity_file"`
+	ProxyJump     *string            `json:"proxy_jump"`
+	ProxyCommand  *string            `json:"proxy_command"`
+	Options       *string            `json:"options"`
+	Tags          []string           `json:"tags"`
+	RemoteCommand *string            `json:"remote_command"`
+	RequestTTY    *string            `json:"request_tty"`
+	Source        *infoSourceForTest `json:"source"`
+}
+
+type infoTargetForTest struct {
+	Host     string  `json:"host"`
+	Hostname *string `json:"hostname"`
+	User     *string `json:"user"`
+	Port     *int    `json:"port"`
+}
+
+type infoSourceForTest struct {
+	File string `json:"file"`
+	Line int    `json:"line"`
+}
+
+type infoErrorForTest struct {
+	Code    string          `json:"code"`
+	Message string          `json:"message"`
+	Details json.RawMessage `json:"details"`
+}
+
+func TestInfoCommandConfig(t *testing.T) {
+	if infoCmd.Use != "info <hostname>" {
+		t.Fatalf("infoCmd.Use=%q", infoCmd.Use)
+	}
+
+	err := infoCmd.Args(infoCmd, []string{})
+	if err == nil {
+		t.Fatalf("expected args error for no args")
+	}
+
+	err = infoCmd.Args(infoCmd, []string{"one", "two"})
+	if err == nil {
+		t.Fatalf("expected args error for too many args")
+	}
+
+	err = infoCmd.Args(infoCmd, []string{"host"})
+	if err != nil {
+		t.Fatalf("expected no args error, got %v", err)
+	}
+}
+
+func TestInfoCommandRegistration(t *testing.T) {
+	found := false
+	for _, c := range RootCmd.Commands() {
+		if c.Name() == "info" {
+			found = true
+			break
+		}
+	}
+	if !found {
+		t.Fatalf("info command not registered")
+	}
+}
+
+func TestRunInfoSuccessJSON(t *testing.T) {
+	tempDir := t.TempDir()
+	cfg := filepath.Join(tempDir, "config")
+
+	cfgContent := `# Tags: prod, web
+Host prod-web
+    HostName 10.0.0.10
+    User deploy
+    Port 2222
+    IdentityFile ~/.ssh/id_prod
+    ProxyJump bastion
+    ServerAliveInterval 60
+`
+
+	if err := os.WriteFile(cfg, []byte(cfgContent), 0600); err != nil {
+		t.Fatalf("write config: %v", err)
+	}
+
+	buf := new(bytes.Buffer)
+	exitCode := runInfo(buf, "prod-web", cfg, false)
+	if exitCode != 0 {
+		t.Fatalf("exitCode=%d", exitCode)
+	}
+
+	out := buf.String()
+	if strings.TrimSpace(out) == "" {
+		t.Fatalf("expected output")
+	}
+
+	var resp infoResponseForTest
+	if err := json.Unmarshal([]byte(out), &resp); err != nil {
+		t.Fatalf("output not JSON: %v\noutput=%q", err, out)
+	}
+
+	if resp.Schema != "sshm.info.v1" {
+		t.Fatalf("schema=%q", resp.Schema)
+	}
+	if !resp.OK {
+		t.Fatalf("ok=false")
+	}
+	if resp.Result == nil {
+		t.Fatalf("result is nil")
+	}
+	if resp.Error != nil {
+		t.Fatalf("error is non-nil")
+	}
+
+	if resp.Result.CanonicalName != "prod-web" {
+		t.Fatalf("canonical_name=%q", resp.Result.CanonicalName)
+	}
+	if resp.Result.Target.Host != "prod-web" {
+		t.Fatalf("target.host=%q", resp.Result.Target.Host)
+	}
+	if resp.Result.Target.Hostname == nil || *resp.Result.Target.Hostname != "10.0.0.10" {
+		t.Fatalf("target.hostname=%v", resp.Result.Target.Hostname)
+	}
+	if resp.Result.Target.User == nil || *resp.Result.Target.User != "deploy" {
+		t.Fatalf("target.user=%v", resp.Result.Target.User)
+	}
+	if resp.Result.Target.Port == nil || *resp.Result.Target.Port != 2222 {
+		t.Fatalf("target.port=%v", resp.Result.Target.Port)
+	}
+	if resp.Result.Source == nil || resp.Result.Source.File == "" || resp.Result.Source.Line == 0 {
+		t.Fatalf("source missing: %#v", resp.Result.Source)
+	}
+	if resp.Result.IdentityFile == nil || *resp.Result.IdentityFile != "~/.ssh/id_prod" {
+		t.Fatalf("identity_file=%v", resp.Result.IdentityFile)
+	}
+	if resp.Result.ProxyJump == nil || *resp.Result.ProxyJump != "bastion" {
+		t.Fatalf("proxy_jump=%v", resp.Result.ProxyJump)
+	}
+}
+
+func TestRunInfoNotFoundJSON(t *testing.T) {
+	tempDir := t.TempDir()
+	cfg := filepath.Join(tempDir, "config")
+	cfgContent := `Host known
+    HostName example.com
+`
+	if err := os.WriteFile(cfg, []byte(cfgContent), 0600); err != nil {
+		t.Fatalf("write config: %v", err)
+	}
+
+	buf := new(bytes.Buffer)
+	exitCode := runInfo(buf, "missing", cfg, false)
+	if exitCode != 2 {
+		t.Fatalf("exitCode=%d", exitCode)
+	}
+
+	var resp infoResponseForTest
+	if err := json.Unmarshal(buf.Bytes(), &resp); err != nil {
+		t.Fatalf("output not JSON: %v", err)
+	}
+	if resp.OK {
+		t.Fatalf("ok=true")
+	}
+	if resp.Error == nil {
+		t.Fatalf("error is nil")
+	}
+	if resp.Error.Code != "NOT_FOUND" {
+		t.Fatalf("error.code=%q", resp.Error.Code)
+	}
+}
+
+func TestRunInfoPrettyJSON(t *testing.T) {
+	tempDir := t.TempDir()
+	cfg := filepath.Join(tempDir, "config")
+	cfgContent := `Host known
+    HostName 127.0.0.1
+`
+	if err := os.WriteFile(cfg, []byte(cfgContent), 0600); err != nil {
+		t.Fatalf("write config: %v", err)
+	}
+
+	buf := new(bytes.Buffer)
+	exitCode := runInfo(buf, "known", cfg, true)
+	if exitCode != 0 {
+		t.Fatalf("exitCode=%d", exitCode)
+	}
+
+	out := buf.String()
+	if !strings.Contains(out, "\n") {
+		t.Fatalf("expected pretty output")
+	}
+
+	var resp infoResponseForTest
+	if err := json.Unmarshal(buf.Bytes(), &resp); err != nil {
+		t.Fatalf("output not JSON: %v", err)
+	}
+	if !resp.OK {
+		t.Fatalf("ok=false")
+	}
+}
+
+func TestInfoValidArgsFunction(t *testing.T) {
+	if infoCmd.ValidArgsFunction == nil {
+		t.Fatalf("expected ValidArgsFunction to be set on infoCmd")
+	}
+}
+
+func TestInfoValidArgsFunctionWithSSHConfig(t *testing.T) {
+	tmpDir := t.TempDir()
+	testConfigFile := filepath.Join(tmpDir, "config")
+
+	sshConfig := `Host prod-server
+    HostName 192.168.1.1
+    User admin
+
+Host dev-server
+    HostName 192.168.1.2
+    User developer
+
+Host staging-db
+    HostName 192.168.1.3
+    User dbadmin
+`
+	if err := os.WriteFile(testConfigFile, []byte(sshConfig), 0600); err != nil {
+		t.Fatalf("Failed to write test config: %v", err)
+	}
+
+	originalConfigFile := configFile
+	defer func() { configFile = originalConfigFile }()
+	configFile = testConfigFile
+
+	tests := []struct {
+		name       string
+		toComplete string
+		args       []string
+		wantCount  int
+		wantHosts  []string
+	}{
+		{
+			name:       "empty prefix returns all hosts",
+			toComplete: "",
+			args:       []string{},
+			wantCount:  3,
+			wantHosts:  []string{"prod-server", "dev-server", "staging-db"},
+		},
+		{
+			name:       "prefix filters hosts",
+			toComplete: "prod",
+			args:       []string{},
+			wantCount:  1,
+			wantHosts:  []string{"prod-server"},
+		},
+		{
+			name:       "prefix case insensitive",
+			toComplete: "DEV",
+			args:       []string{},
+			wantCount:  1,
+			wantHosts:  []string{"dev-server"},
+		},
+		{
+			name:       "no match returns empty",
+			toComplete: "nonexistent",
+			args:       []string{},
+			wantCount:  0,
+			wantHosts:  []string{},
+		},
+		{
+			name:       "already has host arg returns nothing",
+			toComplete: "",
+			args:       []string{"existing-host"},
+			wantCount:  0,
+			wantHosts:  []string{},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			completions, directive := infoCmd.ValidArgsFunction(infoCmd, tt.args, tt.toComplete)
+
+			if len(completions) != tt.wantCount {
+				t.Fatalf("Expected %d completions, got %d: %v", tt.wantCount, len(completions), completions)
+			}
+
+			if directive != cobra.ShellCompDirectiveNoFileComp {
+				t.Fatalf("Expected ShellCompDirectiveNoFileComp, got %v", directive)
+			}
+
+			for _, wantHost := range tt.wantHosts {
+				found := false
+				for _, comp := range completions {
+					if comp == wantHost {
+						found = true
+						break
+					}
+				}
+				if !found {
+					t.Fatalf("Expected completion %q not found in %v", wantHost, completions)
+				}
+			}
+		})
+	}
+}

cmd/root.go

@@ -24,33 +24,79 @@ var AppVersion = "dev"
 // configFile holds the path to the SSH config file
 var configFile string
 
+// forceTTY forces pseudo-TTY allocation for remote commands
+var forceTTY bool
+
+// searchMode enables the focus on search mode at startup
+var searchMode bool
+
 // RootCmd is the base command when called without any subcommands
 var RootCmd = &cobra.Command{
-	Use:   "sshm [host]",
+	Use:   "sshm [host] [command...]",
 	Short: "SSH Manager - A modern SSH connection manager",
 	Long: `SSHM is a modern SSH manager for your terminal.
 
 Main usage:
   Running 'sshm' (without arguments) opens the interactive TUI window to browse, search, and connect to your SSH hosts graphically.
   Running 'sshm <host>' connects directly to the specified host and records the connection in your history.
+  Running 'sshm <host> <command>' executes the command on the remote host and returns the output.
 
 You can also use sshm in CLI mode for other operations like adding, editing, or searching hosts.
 
-Hosts are read from your ~/.ssh/config file by default.`,
+Hosts are read from your ~/.ssh/config file by default.
+
+Examples:
+  sshm                           # Open interactive TUI
+  sshm prod-server               # Connect to host interactively
+  sshm prod-server uptime        # Execute 'uptime' on remote host
+  sshm prod-server ls -la /var   # Execute command with arguments
+  sshm -t prod-server sudo reboot # Force TTY for interactive commands`,
 	Version:       AppVersion,
 	Args:          cobra.ArbitraryArgs,
 	SilenceUsage:  true,
 	SilenceErrors: true, // We'll handle errors ourselves
+	// ValidArgsFunction provides shell completion for host names
+	ValidArgsFunction: func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
+		// Only complete the first positional argument (host name)
+		if len(args) != 0 {
+			return nil, cobra.ShellCompDirectiveNoFileComp
+		}
+
+		var hosts []config.SSHHost
+		var err error
+
+		if configFile != "" {
+			hosts, err = config.ParseSSHConfigFile(configFile)
+		} else {
+			hosts, err = config.ParseSSHConfig()
+		}
+
+		if err != nil {
+			return nil, cobra.ShellCompDirectiveError
+		}
+
+		var completions []string
+		toCompleteLower := strings.ToLower(toComplete)
+		for _, host := range hosts {
+			if strings.HasPrefix(strings.ToLower(host.Name), toCompleteLower) {
+				completions = append(completions, host.Name)
+			}
+		}
+
+		return completions, cobra.ShellCompDirectiveNoFileComp
+	},
 	RunE: func(cmd *cobra.Command, args []string) error {
-		// If no arguments provided, run interactive mode
 		if len(args) == 0 {
 			runInteractiveMode()
 			return nil
 		}
 
-		// If a host name is provided, connect directly
 		hostName := args[0]
-		connectToHost(hostName)
+		var remoteCommand []string
+		if len(args) > 1 {
+			remoteCommand = args[1:]
+		}
+		connectToHost(hostName, remoteCommand)
 		return nil
 	},
 }
@@ -97,13 +143,12 @@ func runInteractiveMode() {
 	}
 
 	// Run the interactive TUI
-	if err := ui.RunInteractiveMode(hosts, configFile, AppVersion); err != nil {
+	if err := ui.RunInteractiveMode(hosts, configFile, searchMode, AppVersion); err != nil {
 		log.Fatalf("Error running interactive mode: %v", err)
 	}
 }
 
-func connectToHost(hostName string) {
-	// Quick check if host exists without full parsing (optimized for connection)
+func connectToHost(hostName string, remoteCommand []string) {
 	var hostFound bool
 	var err error
 
@@ -123,45 +168,42 @@ func connectToHost(hostName string) {
 		os.Exit(1)
 	}
 
-	// Record the connection in history
 	historyManager, err := history.NewHistoryManager()
 	if err != nil {
-		// Log the error but don't prevent the connection
 		fmt.Printf("Warning: Could not initialize connection history: %v\n", err)
 	} else {
 		err = historyManager.RecordConnection(hostName)
 		if err != nil {
-			// Log the error but don't prevent the connection
 			fmt.Printf("Warning: Could not record connection history: %v\n", err)
 		}
 	}
 
-	// Build and execute the SSH command
-	fmt.Printf("Connecting to %s...\n", hostName)
-
-	var sshCmd *exec.Cmd
 	var args []string
 
 	if configFile != "" {
 		args = append(args, "-F", configFile)
 	}
+
+	if forceTTY {
+		args = append(args, "-t")
+	}
+
 	args = append(args, hostName)
 
-	// Note: We don't add RemoteCommand here because if it's configured in SSH config,
-	// SSH will handle it automatically. Adding it as a command line argument would conflict.
+	if len(remoteCommand) > 0 {
+		args = append(args, remoteCommand...)
+	} else {
+		fmt.Printf("Connecting to %s...\n", hostName)
+	}
 
-	sshCmd = exec.Command("ssh", args...)
-
-	// Set up the command to use the same stdin, stdout, and stderr as the parent process
+	sshCmd := exec.Command("ssh", args...)
 	sshCmd.Stdin = os.Stdin
 	sshCmd.Stdout = os.Stdout
 	sshCmd.Stderr = os.Stderr
 
-	// Execute the SSH command
 	err = sshCmd.Run()
 	if err != nil {
 		if exitError, ok := err.(*exec.ExitError); ok {
-			// SSH command failed, exit with the same code
 			if status, ok := exitError.Sys().(syscall.WaitStatus); ok {
 				os.Exit(status.ExitStatus())
 			}
@@ -197,17 +239,13 @@ func getVersionWithUpdateCheck() string {
 
 // Execute adds all child commands to the root command and sets flags appropriately.
 func Execute() {
-	// Custom error handling for unknown commands that might be host names
 	if err := RootCmd.Execute(); err != nil {
-		// Check if this is an "unknown command" error and the argument might be a host name
 		errStr := err.Error()
 		if strings.Contains(errStr, "unknown command") {
-			// Extract the command name from the error
 			parts := strings.Split(errStr, "\"")
 			if len(parts) >= 2 {
 				potentialHost := parts[1]
-				// Try to connect to this as a host
-				connectToHost(potentialHost)
+				connectToHost(potentialHost, nil)
 				return
 			}
 		}
@@ -217,8 +255,9 @@ func Execute() {
 }
 
 func init() {
-	// Add the config file flag
 	RootCmd.PersistentFlags().StringVarP(&configFile, "config", "c", "", "SSH config file to use (default: ~/.ssh/config)")
+	RootCmd.Flags().BoolVarP(&forceTTY, "tty", "t", false, "Force pseudo-TTY allocation (useful for interactive remote commands)")
+	RootCmd.PersistentFlags().BoolVarP(&searchMode, "search", "s", false, "Focus on search input at startup")
 
 	// Set custom version template with update check
 	RootCmd.SetVersionTemplate(getVersionWithUpdateCheck())

cmd/root_test.go

@@ -7,9 +7,8 @@ import (
 )
 
 func TestRootCommand(t *testing.T) {
-	// Test that the root command is properly configured
-	if RootCmd.Use != "sshm [host]" {
-		t.Errorf("Expected Use 'sshm [host]', got '%s'", RootCmd.Use)
+	if RootCmd.Use != "sshm [host] [command...]" {
+		t.Errorf("Expected Use 'sshm [host] [command...]', got '%s'", RootCmd.Use)
 	}
 
 	if RootCmd.Short != "SSH Manager - A modern SSH connection manager" {
@@ -22,10 +21,8 @@ func TestRootCommand(t *testing.T) {
 }
 
 func TestRootCommandFlags(t *testing.T) {
-	// Test that persistent flags are properly configured
 	flags := RootCmd.PersistentFlags()
 
-	// Check config flag
 	configFlag := flags.Lookup("config")
 	if configFlag == nil {
 		t.Error("Expected --config flag to be defined")
@@ -34,12 +31,21 @@ func TestRootCommandFlags(t *testing.T) {
 	if configFlag.Shorthand != "c" {
 		t.Errorf("Expected config flag shorthand 'c', got '%s'", configFlag.Shorthand)
 	}
+
+	ttyFlag := RootCmd.Flags().Lookup("tty")
+	if ttyFlag == nil {
+		t.Error("Expected --tty flag to be defined")
+		return
+	}
+	if ttyFlag.Shorthand != "t" {
+		t.Errorf("Expected tty flag shorthand 't', got '%s'", ttyFlag.Shorthand)
+	}
 }
 
 func TestRootCommandSubcommands(t *testing.T) {
 	// Test that all expected subcommands are registered
 	// Note: completion and help are automatically added by Cobra and may not always appear in Commands()
-	expectedCommands := []string{"add", "edit", "search"}
+	expectedCommands := []string{"add", "edit", "search", "info"}
 
 	commands := RootCmd.Commands()
 	commandNames := make(map[string]bool)
@@ -103,13 +109,17 @@ func TestExecuteFunction(t *testing.T) {
 }
 
 func TestConnectToHostFunction(t *testing.T) {
-	// Test that connectToHost function exists and can be called
-	// Note: We can't easily test the actual connection without a valid SSH config
-	// and without actually connecting to a host, but we can verify the function exists
 	t.Log("connectToHost function exists and is accessible")
+}
 
-	// The function will handle errors internally (like host not found)
-	// We don't want to actually test the SSH connection in unit tests
+func TestRemoteCommandUsage(t *testing.T) {
+	if !strings.Contains(RootCmd.Long, "command") {
+		t.Error("Long description should mention remote command execution")
+	}
+
+	if !strings.Contains(RootCmd.Long, "uptime") {
+		t.Error("Long description should include command examples")
+	}
 }
 
 func TestRunInteractiveModeFunction(t *testing.T) {

cmd/search.go

@@ -205,6 +205,7 @@ func outputJSON(hosts []config.SSHHost) {
 		fmt.Printf("    \"port\": \"%s\",\n", escapeJSON(host.Port))
 		fmt.Printf("    \"identity\": \"%s\",\n", escapeJSON(host.Identity))
 		fmt.Printf("    \"proxy_jump\": \"%s\",\n", escapeJSON(host.ProxyJump))
+		fmt.Printf("    \"proxy_command\": \"%s\",\n", escapeJSON(host.ProxyCommand))
 		fmt.Printf("    \"options\": \"%s\",\n", escapeJSON(host.Options))
 		fmt.Printf("    \"tags\": [")
 		for j, tag := range host.Tags {

internal/config/ssh.go

@@ -11,6 +11,18 @@ import (
 	"sync"
 )
 
+func getHomeDir() (string, error) {
+	home := os.Getenv("HOME")
+	if home != "" {
+		return home, nil
+	}
+	home = os.Getenv("USERPROFILE")
+	if home != "" {
+		return home, nil
+	}
+	return os.UserHomeDir()
+}
+
 // SSHHost represents an SSH host configuration
 type SSHHost struct {
 	Name          string
@@ -19,11 +31,13 @@ type SSHHost struct {
 	Port          string
 	Identity      string
 	ProxyJump     string
+	ProxyCommand  string
 	Options       string
 	RemoteCommand string // Command to execute after SSH connection
 	RequestTTY    string // Request TTY (yes, no, force, auto)
 	Tags          []string
 	SourceFile    string // Path to the config file where this host is defined
+	LineNumber    int    // Line number in the source file where this host block starts (1-indexed)
 
 	// Temporary field to handle multiple aliases during parsing
 	aliasNames []string `json:"-"` // Do not serialize this field
@@ -31,7 +45,7 @@ type SSHHost struct {
 
 // GetDefaultSSHConfigPath returns the default SSH config path for the current platform
 func GetDefaultSSHConfigPath() (string, error) {
-	homeDir, err := os.UserHomeDir()
+	homeDir, err := getHomeDir()
 	if err != nil {
 		return "", err
 	}
@@ -47,7 +61,7 @@ func GetDefaultSSHConfigPath() (string, error) {
 
 // GetSSHMConfigDir returns the SSHM config directory
 func GetSSHMConfigDir() (string, error) {
-	homeDir, err := os.UserHomeDir()
+	homeDir, err := getHomeDir()
 	if err != nil {
 		return "", err
 	}
@@ -86,7 +100,7 @@ func GetSSHMBackupDir() (string, error) {
 
 // GetSSHDirectory returns the .ssh directory path
 func GetSSHDirectory() (string, error) {
-	homeDir, err := os.UserHomeDir()
+	homeDir, err := getHomeDir()
 	if err != nil {
 		return "", err
 	}
@@ -211,8 +225,10 @@ func parseSSHConfigFileWithProcessedFiles(configPath string, processedFiles map[
 	var currentHost *SSHHost
 	var pendingTags []string
 	scanner := bufio.NewScanner(file)
+	lineNumber := 0
 
 	for scanner.Scan() {
+		lineNumber++
 		line := strings.TrimSpace(scanner.Text())
 
 		// Ignore empty lines
@@ -279,8 +295,12 @@ func parseSSHConfigFileWithProcessedFiles(configPath string, processedFiles map[
 			hostNames := strings.Fields(value)
 
 			// Skip hosts with wildcards (*, ?) as they are typically patterns, not actual hosts
+			// Also remove surrounding quotes from host names
 			var validHostNames []string
 			for _, hostName := range hostNames {
+				// Remove surrounding double quotes if present
+				hostName = strings.Trim(hostName, `"`)
+
 				if !strings.ContainsAny(hostName, "*?") {
 					validHostNames = append(validHostNames, hostName)
 				}
@@ -299,6 +319,7 @@ func parseSSHConfigFileWithProcessedFiles(configPath string, processedFiles map[
 				Port:       "22",              // Default port
 				Tags:       pendingTags,       // Assign pending tags to this host
 				SourceFile: absPath,           // Track which file this host comes from
+				LineNumber: lineNumber,        // Track the line number where Host declaration starts
 			}
 
 			// Store additional host names for later processing
@@ -328,6 +349,10 @@ func parseSSHConfigFileWithProcessedFiles(configPath string, processedFiles map[
 			if currentHost != nil {
 				currentHost.ProxyJump = value
 			}
+		case "proxycommand":
+			if currentHost != nil {
+				currentHost.ProxyCommand = value
+			}
 		case "remotecommand":
 			if currentHost != nil {
 				currentHost.RemoteCommand = value
@@ -373,7 +398,7 @@ func parseSSHConfigFileWithProcessedFiles(configPath string, processedFiles map[
 func processIncludeDirective(pattern string, baseConfigPath string, processedFiles map[string]bool) ([]SSHHost, error) {
 	// Expand tilde to home directory
 	if strings.HasPrefix(pattern, "~") {
-		homeDir, err := os.UserHomeDir()
+		homeDir, err := getHomeDir()
 		if err != nil {
 			return nil, fmt.Errorf("failed to get home directory: %w", err)
 		}
@@ -613,6 +638,13 @@ func AddSSHHostToFile(host SSHHost, configPath string) error {
 		}
 	}
 
+	if host.ProxyCommand != "" {
+		_, err = file.WriteString(fmt.Sprintf("    ProxyCommand=%s\n", host.ProxyCommand))
+		if err != nil {
+			return err
+		}
+	}
+
 	if host.RemoteCommand != "" {
 		_, err = file.WriteString(fmt.Sprintf("    RemoteCommand %s\n", host.RemoteCommand))
 		if err != nil {
@@ -646,13 +678,34 @@ func AddSSHHostToFile(host SSHHost, configPath string) error {
 }
 
 // ParseSSHOptionsFromCommand converts SSH command line options to config format
-// Input: "-o Compression=yes -o ServerAliveInterval=60"
+// Input: "-o Compression=yes -o ServerAliveInterval=60" or "ForwardX11 true" or "Compression yes"
 // Output: "Compression yes\nServerAliveInterval 60"
 func ParseSSHOptionsFromCommand(options string) string {
 	if options == "" {
 		return ""
 	}
 
+	options = strings.TrimSpace(options)
+
+	// If it doesn't contain -o, assume it's already in config format
+	if !strings.Contains(options, "-o") {
+		// Just normalize spaces and ensure newlines between options
+		lines := strings.Split(options, "\n")
+		var result []string
+		for _, line := range lines {
+			line = strings.TrimSpace(line)
+			if line == "" {
+				continue
+			}
+			// Normalize spacing (replace multiple spaces with single space)
+			parts := strings.Fields(line)
+			if len(parts) > 0 {
+				result = append(result, strings.Join(parts, " "))
+			}
+		}
+		return strings.Join(result, "\n")
+	}
+
 	var result []string
 	parts := strings.Split(options, "-o")
 
@@ -678,6 +731,12 @@ func FormatSSHOptionsForCommand(options string) string {
 		return ""
 	}
 
+	// If already in command format (starts with -o), return as is
+	trimmed := strings.TrimSpace(options)
+	if strings.HasPrefix(trimmed, "-o ") {
+		return trimmed
+	}
+
 	var result []string
 	lines := strings.Split(options, "\n")
 
@@ -853,6 +912,9 @@ func quickHostSearchInFile(hostName string, configPath string, processedFiles ma
 
 			// Check if our target host is in this Host declaration
 			for _, candidateHostName := range hostNames {
+				// Remove surrounding double quotes if present
+				candidateHostName = strings.Trim(candidateHostName, `"`)
+
 				// Skip hosts with wildcards (*, ?) as they are typically patterns
 				if !strings.ContainsAny(candidateHostName, "*?") && candidateHostName == hostName {
 					return true, nil // Found the host!
@@ -868,7 +930,7 @@ func quickHostSearchInFile(hostName string, configPath string, processedFiles ma
 func quickSearchInclude(hostName, pattern, baseConfigPath string, processedFiles map[string]bool) (bool, error) {
 	// Expand tilde to home directory
 	if strings.HasPrefix(pattern, "~") {
-		homeDir, err := os.UserHomeDir()
+		homeDir, err := getHomeDir()
 		if err != nil {
 			return false, fmt.Errorf("failed to get home directory: %w", err)
 		}
@@ -1044,6 +1106,9 @@ func UpdateSSHHostInFile(oldName string, newHost SSHHost, configPath string) err
 						if newHost.ProxyJump != "" {
 							newLines = append(newLines, "    ProxyJump "+newHost.ProxyJump)
 						}
+						if newHost.ProxyCommand != "" {
+							newLines = append(newLines, "    ProxyCommand="+newHost.ProxyCommand)
+						}
 						if newHost.RemoteCommand != "" {
 							newLines = append(newLines, "    RemoteCommand "+newHost.RemoteCommand)
 						}
@@ -1098,6 +1163,9 @@ func UpdateSSHHostInFile(oldName string, newHost SSHHost, configPath string) err
 						if newHost.ProxyJump != "" {
 							newLines = append(newLines, "    ProxyJump "+newHost.ProxyJump)
 						}
+						if newHost.ProxyCommand != "" {
+							newLines = append(newLines, "    ProxyCommand="+newHost.ProxyCommand)
+						}
 						if newHost.RemoteCommand != "" {
 							newLines = append(newLines, "    RemoteCommand "+newHost.RemoteCommand)
 						}
@@ -1188,6 +1256,9 @@ func UpdateSSHHostInFile(oldName string, newHost SSHHost, configPath string) err
 					if newHost.ProxyJump != "" {
 						newLines = append(newLines, "    ProxyJump "+newHost.ProxyJump)
 					}
+					if newHost.ProxyCommand != "" {
+						newLines = append(newLines, "    ProxyCommand="+newHost.ProxyCommand)
+					}
 					if newHost.RemoteCommand != "" {
 						newLines = append(newLines, "    RemoteCommand "+newHost.RemoteCommand)
 					}
@@ -1242,6 +1313,9 @@ func UpdateSSHHostInFile(oldName string, newHost SSHHost, configPath string) err
 					if newHost.ProxyJump != "" {
 						newLines = append(newLines, "    ProxyJump "+newHost.ProxyJump)
 					}
+					if newHost.ProxyCommand != "" {
+						newLines = append(newLines, "    ProxyCommand="+newHost.ProxyCommand)
+					}
 					if newHost.RemoteCommand != "" {
 						newLines = append(newLines, "    RemoteCommand "+newHost.RemoteCommand)
 					}
@@ -1283,11 +1357,21 @@ func UpdateSSHHostInFile(oldName string, newHost SSHHost, configPath string) err
 
 // DeleteSSHHost removes an SSH host configuration from the config file
 func DeleteSSHHost(hostName string) error {
-	return DeleteSSHHostV2(hostName)
+	return DeleteSSHHostV2(hostName, 0) // Legacy: without line number
+}
+
+// DeleteSSHHostWithLine deletes a specific SSH host by name and line number
+func DeleteSSHHostWithLine(host SSHHost) error {
+	return DeleteSSHHostFromFileWithLine(host.Name, host.SourceFile, host.LineNumber)
 }
 
 // DeleteSSHHostFromFile deletes an SSH host from a specific config file
 func DeleteSSHHostFromFile(hostName, configPath string) error {
+	return DeleteSSHHostFromFileWithLine(hostName, configPath, 0) // Legacy: without line number
+}
+
+// DeleteSSHHostFromFileWithLine deletes an SSH host from a specific config file at a specific line
+func DeleteSSHHostFromFileWithLine(hostName, configPath string, targetLineNumber int) error {
 	configMutex.Lock()
 	defer configMutex.Unlock()
 
@@ -1314,11 +1398,13 @@ func DeleteSSHHostFromFile(hostName, configPath string) error {
 	hostFound := false
 
 	for i < len(lines) {
+		currentLineNumber := i + 1 // Convert 0-indexed to 1-indexed
 		line := strings.TrimSpace(lines[i])
 
 		// Check for tags comment followed by Host
 		if strings.HasPrefix(line, "# Tags:") && i+1 < len(lines) {
 			nextLine := strings.TrimSpace(lines[i+1])
+			nextLineNumber := i + 2 // The Host line is at i+1, so its 1-indexed number is i+2
 
 			// Check if this is a Host line that contains our target host
 			if strings.HasPrefix(nextLine, "Host ") {
@@ -1334,7 +1420,10 @@ func DeleteSSHHostFromFile(hostName, configPath string) error {
 					}
 				}
 
-				if targetHostIndex != -1 {
+				// Only proceed if:
+				// 1. We found the host name
+				// 2. Either no line number was specified (targetLineNumber == 0) OR the line numbers match
+				if targetHostIndex != -1 && (targetLineNumber == 0 || nextLineNumber == targetLineNumber) {
 					hostFound = true
 
 					if isMultiHost && len(hostNames) > 1 {
@@ -1372,7 +1461,12 @@ func DeleteSSHHostFromFile(hostName, configPath string) error {
 							i++
 						}
 
-						continue
+						// Copy remaining lines and break to prevent deleting other duplicates
+						for i < len(lines) {
+							newLines = append(newLines, lines[i])
+							i++
+						}
+						break
 					} else {
 						// Single host or last host in multi-host block, delete entire block
 						// Skip tags comment and Host line
@@ -1388,7 +1482,12 @@ func DeleteSSHHostFromFile(hostName, configPath string) error {
 							i++
 						}
 
-						continue
+						// Copy remaining lines and break to prevent deleting other duplicates
+						for i < len(lines) {
+							newLines = append(newLines, lines[i])
+							i++
+						}
+						break
 					}
 				}
 			}
@@ -1408,7 +1507,10 @@ func DeleteSSHHostFromFile(hostName, configPath string) error {
 				}
 			}
 
-			if targetHostIndex != -1 {
+			// Only proceed if:
+			// 1. We found the host name
+			// 2. Either no line number was specified (targetLineNumber == 0) OR the line numbers match
+			if targetHostIndex != -1 && (targetLineNumber == 0 || currentLineNumber == targetLineNumber) {
 				hostFound = true
 
 				if isMultiHost && len(hostNames) > 1 {
@@ -1443,7 +1545,12 @@ func DeleteSSHHostFromFile(hostName, configPath string) error {
 						i++
 					}
 
-					continue
+					// Copy remaining lines and break to prevent deleting other duplicates
+					for i < len(lines) {
+						newLines = append(newLines, lines[i])
+						i++
+					}
+					break
 				} else {
 					// Single host, delete entire block
 					// Skip Host line
@@ -1459,7 +1566,12 @@ func DeleteSSHHostFromFile(hostName, configPath string) error {
 						i++
 					}
 
-					continue
+					// Copy remaining lines and break to prevent deleting other duplicates
+					for i < len(lines) {
+						newLines = append(newLines, lines[i])
+						i++
+					}
+					break
 				}
 			}
 		}
@@ -1542,15 +1654,15 @@ func UpdateSSHHostV2(oldName string, newHost SSHHost) error {
 }
 
 // DeleteSSHHostV2 removes an SSH host configuration, searching in all config files
-func DeleteSSHHostV2(hostName string) error {
+func DeleteSSHHostV2(hostName string, targetLineNumber int) error {
 	// Find the host to determine which file it's in
 	existingHost, err := FindHostInAllConfigs(hostName)
 	if err != nil {
 		return err
 	}
 
-	// Delete the host from its source file
-	return DeleteSSHHostFromFile(hostName, existingHost.SourceFile)
+	// Delete the host from its source file using line number if provided
+	return DeleteSSHHostFromFileWithLine(hostName, existingHost.SourceFile, targetLineNumber)
 }
 
 // AddSSHHostWithFileSelection adds a new SSH host to a user-specified config file
@@ -1742,6 +1854,9 @@ func UpdateMultiHostBlock(originalHosts, newHosts []string, commonProperties SSH
 					if commonProperties.ProxyJump != "" {
 						newLines = append(newLines, "    ProxyJump "+commonProperties.ProxyJump)
 					}
+					if commonProperties.ProxyCommand != "" {
+						newLines = append(newLines, "    ProxyCommand="+commonProperties.ProxyCommand)
+					}
 					if commonProperties.RemoteCommand != "" {
 						newLines = append(newLines, "    RemoteCommand "+commonProperties.RemoteCommand)
 					}
@@ -1828,6 +1943,9 @@ func UpdateMultiHostBlock(originalHosts, newHosts []string, commonProperties SSH
 				if commonProperties.ProxyJump != "" {
 					newLines = append(newLines, "    ProxyJump "+commonProperties.ProxyJump)
 				}
+				if commonProperties.ProxyCommand != "" {
+					newLines = append(newLines, "    ProxyCommand="+commonProperties.ProxyCommand)
+				}
 				if commonProperties.RemoteCommand != "" {
 					newLines = append(newLines, "    RemoteCommand "+commonProperties.RemoteCommand)
 				}

internal/config/ssh_test.go

@@ -456,15 +456,21 @@ func TestBackupConfigToSSHMDirectory(t *testing.T) {
 	// Create temporary directory for test files
 	tempDir := t.TempDir()
 
-	// Override the home directory for this test
 	originalHome := os.Getenv("HOME")
 	if originalHome == "" {
-		originalHome = os.Getenv("USERPROFILE") // Windows
+		originalHome = os.Getenv("USERPROFILE")
 	}
+	originalXDG := os.Getenv("XDG_CONFIG_HOME")
+	originalAppData := os.Getenv("APPDATA")
 
-	// Set test home directory
 	os.Setenv("HOME", tempDir)
-	defer os.Setenv("HOME", originalHome)
+	os.Setenv("XDG_CONFIG_HOME", tempDir)
+	os.Setenv("APPDATA", tempDir)
+	defer func() {
+		os.Setenv("HOME", originalHome)
+		os.Setenv("XDG_CONFIG_HOME", originalXDG)
+		os.Setenv("APPDATA", originalAppData)
+	}()
 
 	// Create a test SSH config file
 	sshDir := filepath.Join(tempDir, ".ssh")
@@ -1694,3 +1700,89 @@ Host production-server
 		}
 	}
 }
+
+func TestParseSSHConfigWithQuotedHostNames(t *testing.T) {
+	tempDir := t.TempDir()
+
+	configFile := filepath.Join(tempDir, "config")
+	configContent := `# Test hosts with quoted names (issue #32)
+Host "my-host-name-01"
+    HostName my-host-name-01.cwd.pub.domain.net
+    Port 2222
+    User my_user
+
+Host "qa-test-vm"
+    HostName qa-test-vm.example.com
+    User guillaume
+    Port 22
+
+Host normal-host
+    HostName normal.example.com
+    User testuser
+
+Host "quoted1" "quoted2"
+    HostName multi.example.com
+    User multiuser
+`
+
+	err := os.WriteFile(configFile, []byte(configContent), 0600)
+	if err != nil {
+		t.Fatalf("Failed to create config: %v", err)
+	}
+
+	hosts, err := ParseSSHConfigFile(configFile)
+	if err != nil {
+		t.Fatalf("ParseSSHConfigFile() error = %v", err)
+	}
+
+	// Should get 5 hosts: my-host-name-01, qa-test-vm, normal-host, quoted1, quoted2
+	// All without quotes
+	expectedHosts := map[string]struct{}{
+		"my-host-name-01": {},
+		"qa-test-vm":      {},
+		"normal-host":     {},
+		"quoted1":         {},
+		"quoted2":         {},
+	}
+
+	if len(hosts) != len(expectedHosts) {
+		t.Errorf("Expected %d hosts, got %d", len(expectedHosts), len(hosts))
+		for _, host := range hosts {
+			t.Logf("Found host: %q", host.Name)
+		}
+	}
+
+	hostMap := make(map[string]SSHHost)
+	for _, host := range hosts {
+		// Verify no quotes in host names
+		if strings.Contains(host.Name, `"`) {
+			t.Errorf("Host name %q still contains quotes", host.Name)
+		}
+		hostMap[host.Name] = host
+	}
+
+	for expectedHostName := range expectedHosts {
+		if _, found := hostMap[expectedHostName]; !found {
+			t.Errorf("Expected host %q not found", expectedHostName)
+		}
+	}
+
+	// Verify specific host details
+	if host, found := hostMap["my-host-name-01"]; found {
+		if host.Hostname != "my-host-name-01.cwd.pub.domain.net" {
+			t.Errorf("Host my-host-name-01 has wrong hostname: %q", host.Hostname)
+		}
+		if host.Port != "2222" {
+			t.Errorf("Host my-host-name-01 has wrong port: %q", host.Port)
+		}
+		if host.User != "my_user" {
+			t.Errorf("Host my-host-name-01 has wrong user: %q", host.User)
+		}
+	}
+
+	if host, found := hostMap["qa-test-vm"]; found {
+		if host.Hostname != "qa-test-vm.example.com" {
+			t.Errorf("Host qa-test-vm has wrong hostname: %q", host.Hostname)
+		}
+	}
+}

internal/connectivity/ping.go

@@ -2,12 +2,15 @@ package connectivity
 
 import (
 	"context"
+	"fmt"
 	"net"
-	"github.com/Gu1llaum-3/sshm/internal/config"
+	"os/exec"
 	"strings"
 	"sync"
 	"time"
 
+	"github.com/Gu1llaum-3/sshm/internal/config"
+
 	"golang.org/x/crypto/ssh"
 )
 
@@ -48,13 +51,15 @@ type PingManager struct {
 	results    map[string]*HostPingResult
 	mutex      sync.RWMutex
 	timeout    time.Duration
+	configFile string
 }
 
 // NewPingManager creates a new ping manager with the specified timeout
-func NewPingManager(timeout time.Duration) *PingManager {
+func NewPingManager(timeout time.Duration, configFile string) *PingManager {
 	return &PingManager{
 		results:    make(map[string]*HostPingResult),
 		timeout:    timeout,
+		configFile: configFile,
 	}
 }
 
@@ -98,6 +103,14 @@ func (pm *PingManager) PingHost(ctx context.Context, host config.SSHHost) *HostP
 	// Mark as connecting
 	pm.updateStatus(host.Name, StatusConnecting, nil, 0)
 
+	// If the host uses a ProxyJump or ProxyCommand, we need to use the external SSH command
+	// because implementing jump host support with pure Go ssh library requires
+	// handling authentication for the jump host, which is complex and requires
+	// access to the user's SSH agent or keys.
+	if host.ProxyJump != "" || host.ProxyCommand != "" {
+		return pm.pingWithExternalCommand(ctx, host, start)
+	}
+
 	// Determine the actual hostname and port
 	hostname := host.Hostname
 	if hostname == "" {
@@ -159,6 +172,53 @@ func (pm *PingManager) PingHost(ctx context.Context, host config.SSHHost) *HostP
 	}
 }
 
+// pingWithExternalCommand pings a host using the external SSH command
+func (pm *PingManager) pingWithExternalCommand(ctx context.Context, host config.SSHHost, start time.Time) *HostPingResult {
+	// Construct the SSH command
+	// ssh -q -o BatchMode=yes -o StrictHostKeyChecking=no -o ConnectTimeout=5 host exit
+	args := []string{"-q", "-o", "BatchMode=yes", "-o", "StrictHostKeyChecking=no"}
+
+	// Set timeout matching the manager's timeout
+	// Convert duration to seconds (rounding up to ensure we don't timeout too early in the command)
+	timeoutSec := int(pm.timeout.Seconds())
+	if timeoutSec < 1 {
+		timeoutSec = 1
+	}
+	args = append(args, "-o", fmt.Sprintf("ConnectTimeout=%d", timeoutSec))
+
+	// If we have a specific config file, use it
+	if pm.configFile != "" {
+		args = append(args, "-F", pm.configFile)
+	}
+
+	// Add the host name and the command to run (exit)
+	args = append(args, host.Name, "exit")
+
+	// Create command with context for timeout cancellation
+	// Note: We used pm.timeout for the ssh command option, but we also respect the context deadline
+	cmd := exec.CommandContext(ctx, "ssh", args...)
+
+	// Run the command
+	err := cmd.Run()
+	duration := time.Since(start)
+
+	var status PingStatus
+	if err != nil {
+		// SSH returns non-zero exit code on connection failure
+		status = StatusOffline
+	} else {
+		status = StatusOnline
+	}
+
+	pm.updateStatus(host.Name, status, err, duration)
+	return &HostPingResult{
+		HostName: host.Name,
+		Status:   status,
+		Error:    err,
+		Duration: duration,
+	}
+}
+
 // PingAllHosts pings all hosts concurrently and returns a channel of results
 func (pm *PingManager) PingAllHosts(ctx context.Context, hosts []config.SSHHost) <-chan *HostPingResult {
 	resultChan := make(chan *HostPingResult, len(hosts))

internal/connectivity/ping_test.go

@@ -9,7 +9,7 @@ import (
 )
 
 func TestNewPingManager(t *testing.T) {
-	pm := NewPingManager(5 * time.Second)
+	pm := NewPingManager(5*time.Second, "")
 	if pm == nil {
 		t.Error("NewPingManager() returned nil")
 	}
@@ -19,7 +19,7 @@ func TestNewPingManager(t *testing.T) {
 }
 
 func TestPingManager_PingHost(t *testing.T) {
-	pm := NewPingManager(1 * time.Second)
+	pm := NewPingManager(1*time.Second, "")
 	ctx := context.Background()
 
 	// Test ping method exists and doesn't panic
@@ -38,7 +38,7 @@ func TestPingManager_PingHost(t *testing.T) {
 }
 
 func TestPingManager_GetStatus(t *testing.T) {
-	pm := NewPingManager(1 * time.Second)
+	pm := NewPingManager(1*time.Second, "")
 
 	// Test unknown host
 	status := pm.GetStatus("unknown.host")
@@ -57,7 +57,7 @@ func TestPingManager_GetStatus(t *testing.T) {
 }
 
 func TestPingManager_PingMultipleHosts(t *testing.T) {
-	pm := NewPingManager(1 * time.Second)
+	pm := NewPingManager(1*time.Second, "")
 	hosts := []config.SSHHost{
 		{Name: "localhost", Hostname: "127.0.0.1", Port: "22"},
 		{Name: "invalid", Hostname: "invalid.host.12345", Port: "22"},
@@ -81,7 +81,7 @@ func TestPingManager_PingMultipleHosts(t *testing.T) {
 }
 
 func TestPingManager_GetResult(t *testing.T) {
-	pm := NewPingManager(1 * time.Second)
+	pm := NewPingManager(1*time.Second, "")
 	ctx := context.Background()
 
 	// Test getting result for unknown host
@@ -126,7 +126,7 @@ func TestPingStatus_String(t *testing.T) {
 
 func TestPingHost_Basic(t *testing.T) {
 	// Test that the ping functionality exists
-	pm := NewPingManager(1 * time.Second)
+	pm := NewPingManager(1*time.Second, "")
 	ctx := context.Background()
 	host := config.SSHHost{Name: "test", Hostname: "127.0.0.1", Port: "22"}
 

internal/ui/add_form.go

@@ -49,7 +49,7 @@ func NewAddForm(hostname string, styles Styles, width, height int, configFile st
 		}
 	}
 
-	inputs := make([]textinput.Model, 10) // Increased from 9 to 10 for RequestTTY
+	inputs := make([]textinput.Model, 11)
 
 	// Name input
 	inputs[nameInput] = textinput.New()
@@ -91,6 +91,12 @@ func NewAddForm(hostname string, styles Styles, width, height int, configFile st
 	inputs[proxyJumpInput].CharLimit = 200
 	inputs[proxyJumpInput].Width = 50
 
+	// ProxyCommand input
+	inputs[proxyCommandInput] = textinput.New()
+	inputs[proxyCommandInput].Placeholder = "ssh -W %h:%p Jumphost"
+	inputs[proxyCommandInput].CharLimit = 200
+	inputs[proxyCommandInput].Width = 50
+
 	// SSH Options input
 	inputs[optionsInput] = textinput.New()
 	inputs[optionsInput].Placeholder = "-o Compression=yes -o ServerAliveInterval=60"
@@ -138,9 +144,10 @@ const (
 	portInput
 	identityInput
 	proxyJumpInput
+	proxyCommandInput
+	optionsInput
 	tagsInput
 	// Advanced tab inputs
-	optionsInput
 	remoteCommandInput
 	requestTTYInput
 )
@@ -229,11 +236,11 @@ func (m *addFormModel) getFirstInputForTab(tab int) int {
 func (m *addFormModel) getInputsForCurrentTab() []int {
 	switch m.currentTab {
 	case tabGeneral:
-		return []int{nameInput, hostnameInput, userInput, portInput, identityInput, proxyJumpInput, tagsInput}
+		return []int{nameInput, hostnameInput, userInput, portInput, identityInput, proxyJumpInput, proxyCommandInput, tagsInput}
 	case tabAdvanced:
 		return []int{optionsInput, remoteCommandInput, requestTTYInput}
 	default:
-		return []int{nameInput, hostnameInput, userInput, portInput, identityInput, proxyJumpInput, tagsInput}
+		return []int{nameInput, hostnameInput, userInput, portInput, identityInput, proxyJumpInput, proxyCommandInput, tagsInput}
 	}
 }
 
@@ -275,11 +282,29 @@ func (m *addFormModel) handleNavigation(key string) tea.Cmd {
 		currentPos++
 	}
 
-	// Wrap around within current tab
+	// Handle transitions between tabs
 	if currentPos >= len(currentTabInputs) {
+		// Move to next tab
+		if m.currentTab == tabGeneral {
+			// Move to advanced tab
+			m.currentTab = tabAdvanced
+			m.focused = m.getFirstInputForTab(tabAdvanced)
+			return m.updateFocus()
+		} else {
+			// Wrap around to first field of current tab
 			currentPos = 0
+		}
 	} else if currentPos < 0 {
+		// Move to previous tab
+		if m.currentTab == tabAdvanced {
+			// Move to general tab
+			m.currentTab = tabGeneral
+			currentTabInputs = m.getInputsForCurrentTab()
 			currentPos = len(currentTabInputs) - 1
+		} else {
+			// Wrap around to last field of current tab
+			currentPos = len(currentTabInputs) - 1
+		}
 	}
 
 	m.focused = currentTabInputs[currentPos]
@@ -401,6 +426,7 @@ func (m *addFormModel) renderGeneralTab() string {
 		{portInput, "Port"},
 		{identityInput, "Identity File"},
 		{proxyJumpInput, "ProxyJump"},
+		{proxyCommandInput, "ProxyCommand"},
 		{tagsInput, "Tags (comma-separated)"},
 	}
 
@@ -489,6 +515,7 @@ func (m *addFormModel) submitForm() tea.Cmd {
 		port := strings.TrimSpace(m.inputs[portInput].Value())
 		identity := strings.TrimSpace(m.inputs[identityInput].Value())
 		proxyJump := strings.TrimSpace(m.inputs[proxyJumpInput].Value())
+		proxyCommand := strings.TrimSpace(m.inputs[proxyCommandInput].Value())
 		options := strings.TrimSpace(m.inputs[optionsInput].Value())
 		remoteCommand := strings.TrimSpace(m.inputs[remoteCommandInput].Value())
 		requestTTY := strings.TrimSpace(m.inputs[requestTTYInput].Value())
@@ -526,6 +553,7 @@ func (m *addFormModel) submitForm() tea.Cmd {
 			Port:          port,
 			Identity:      identity,
 			ProxyJump:     proxyJump,
+			ProxyCommand:  proxyCommand,
 			Options:       config.ParseSSHOptionsFromCommand(options),
 			RemoteCommand: remoteCommand,
 			RequestTTY:    requestTTY,

internal/ui/edit_form.go

@@ -91,7 +91,7 @@ func NewEditForm(hostName string, styles Styles, width, height int, configFile s
 		}
 	}
 
-	inputs := make([]textinput.Model, 9) // Increased from 8 to 9 for RequestTTY
+	inputs := make([]textinput.Model, 10)
 
 	// Hostname input
 	inputs[0] = textinput.New()
@@ -128,37 +128,44 @@ func NewEditForm(hostName string, styles Styles, width, height int, configFile s
 	inputs[4].Width = 30
 	inputs[4].SetValue(host.ProxyJump)
 
-	// Options input
+	// ProxyCommand input
 	inputs[5] = textinput.New()
-	inputs[5].Placeholder = "-o StrictHostKeyChecking=no"
+	inputs[5].Placeholder = "ssh -W %h:%p Jumphost"
 	inputs[5].CharLimit = 200
 	inputs[5].Width = 50
+	inputs[5].SetValue(host.ProxyCommand)
+
+	// Options input
+	inputs[6] = textinput.New()
+	inputs[6].Placeholder = "-o StrictHostKeyChecking=no"
+	inputs[6].CharLimit = 200
+	inputs[6].Width = 50
 	if host.Options != "" {
-		inputs[5].SetValue(config.FormatSSHOptionsForCommand(host.Options))
+		inputs[6].SetValue(config.FormatSSHOptionsForCommand(host.Options))
 	}
 
 	// Tags input
-	inputs[6] = textinput.New()
-	inputs[6].Placeholder = "production, web, database"
-	inputs[6].CharLimit = 200
-	inputs[6].Width = 50
+	inputs[7] = textinput.New()
+	inputs[7].Placeholder = "production, web, database"
+	inputs[7].CharLimit = 200
+	inputs[7].Width = 50
 	if len(host.Tags) > 0 {
-		inputs[6].SetValue(strings.Join(host.Tags, ", "))
+		inputs[7].SetValue(strings.Join(host.Tags, ", "))
 	}
 
 	// Remote Command input
-	inputs[7] = textinput.New()
-	inputs[7].Placeholder = "ls -la, htop, bash"
-	inputs[7].CharLimit = 300
-	inputs[7].Width = 70
-	inputs[7].SetValue(host.RemoteCommand)
+	inputs[8] = textinput.New()
+	inputs[8].Placeholder = "ls -la, htop, bash"
+	inputs[8].CharLimit = 300
+	inputs[8].Width = 70
+	inputs[8].SetValue(host.RemoteCommand)
 
 	// RequestTTY input
-	inputs[8] = textinput.New()
-	inputs[8].Placeholder = "yes, no, force, auto"
-	inputs[8].CharLimit = 10
-	inputs[8].Width = 30
-	inputs[8].SetValue(host.RequestTTY)
+	inputs[9] = textinput.New()
+	inputs[9].Placeholder = "yes, no, force, auto"
+	inputs[9].CharLimit = 10
+	inputs[9].Width = 30
+	inputs[9].SetValue(host.RequestTTY)
 
 	return &editFormModel{
 		hostInputs:       hostInputs,
@@ -253,19 +260,19 @@ func (m *editFormModel) updateFocus() tea.Cmd {
 func (m *editFormModel) getPropertiesForCurrentTab() []int {
 	switch m.currentTab {
 	case 0: // General
-		return []int{0, 1, 2, 3, 4, 6} // hostname, user, port, identity, proxyjump, tags
+		return []int{0, 1, 2, 3, 4, 5, 7} // hostname, user, port, identity, proxyjump, proxycommand, tags
 	case 1: // Advanced
-		return []int{5, 7, 8} // options, remotecommand, requesttty
+		return []int{6, 8, 9} // options, remotecommand, requesttty
 	default:
-		return []int{0, 1, 2, 3, 4, 6}
+		return []int{0, 1, 2, 3, 4, 5, 7}
 	}
 }
 
 // getFirstPropertyForTab returns the first property index for a given tab
 func (m *editFormModel) getFirstPropertyForTab(tab int) int {
-	properties := []int{0, 1, 2, 3, 4, 6} // General tab
+	properties := []int{0, 1, 2, 3, 4, 5, 7} // General tab
 	if tab == 1 {
-		properties = []int{5, 7, 8} // Advanced tab
+		properties = []int{6, 8, 9} // Advanced tab
 	}
 	if len(properties) > 0 {
 		return properties[0]
@@ -580,7 +587,8 @@ func (m *editFormModel) renderEditGeneralTab() string {
 		{2, "Port"},
 		{3, "Identity File"},
 		{4, "Proxy Jump"},
-		{6, "Tags (comma-separated)"},
+		{5, "Proxy Command"},
+		{7, "Tags (comma-separated)"},
 	}
 
 	for _, field := range fields {
@@ -605,9 +613,9 @@ func (m *editFormModel) renderEditAdvancedTab() string {
 		index int
 		label string
 	}{
-		{5, "SSH Options"},
-		{7, "Remote Command"},
-		{8, "Request TTY"},
+		{6, "SSH Options"},
+		{8, "Remote Command"},
+		{9, "Request TTY"},
 	}
 
 	for _, field := range fields {
@@ -683,9 +691,10 @@ func (m *editFormModel) submitEditForm() tea.Cmd {
 		port := strings.TrimSpace(m.inputs[2].Value())                                       // portInput
 		identity := strings.TrimSpace(m.inputs[3].Value())                                   // identityInput
 		proxyJump := strings.TrimSpace(m.inputs[4].Value())                                  // proxyJumpInput
-		options := strings.TrimSpace(m.inputs[5].Value())       // optionsInput
-		remoteCommand := strings.TrimSpace(m.inputs[7].Value()) // remoteCommandInput
-		requestTTY := strings.TrimSpace(m.inputs[8].Value())    // requestTTYInput
+		proxyCommand := strings.TrimSpace(m.inputs[5].Value())                               // proxyCommandInput
+		options := config.ParseSSHOptionsFromCommand(strings.TrimSpace(m.inputs[6].Value())) // optionsInput
+		remoteCommand := strings.TrimSpace(m.inputs[8].Value())                              // remoteCommandInput
+		requestTTY := strings.TrimSpace(m.inputs[9].Value())                                 // requestTTYInput
 
 		// Set defaults
 		if port == "" {
@@ -705,7 +714,7 @@ func (m *editFormModel) submitEditForm() tea.Cmd {
 		}
 
 		// Parse tags
-		tagsStr := strings.TrimSpace(m.inputs[6].Value()) // tagsInput
+		tagsStr := strings.TrimSpace(m.inputs[7].Value()) // tagsInput
 		var tags []string
 		if tagsStr != "" {
 			for _, tag := range strings.Split(tagsStr, ",") {
@@ -723,6 +732,7 @@ func (m *editFormModel) submitEditForm() tea.Cmd {
 			Port:          port,
 			Identity:      identity,
 			ProxyJump:     proxyJump,
+			ProxyCommand:  proxyCommand,
 			Options:       options,
 			RemoteCommand: remoteCommand,
 			RequestTTY:    requestTTY,

internal/ui/info_form.go

@@ -97,6 +97,7 @@ func (m *infoFormModel) View() string {
 		{"Port", formatOptionalValue(m.host.Port)},
 		{"Identity File", formatOptionalValue(m.host.Identity)},
 		{"ProxyJump", formatOptionalValue(m.host.ProxyJump)},
+		{"ProxyCommand", formatOptionalValue(m.host.ProxyCommand)},
 		{"SSH Options", formatSSHOptions(m.host.Options)},
 		{"Tags", formatTags(m.host.Tags)},
 	}

internal/ui/model.go

@@ -74,7 +74,7 @@ type Model struct {
 	filteredHosts  []config.SSHHost
 	searchMode     bool
 	deleteMode     bool
-	deleteHost     string
+	deleteHost     *config.SSHHost // Host to be deleted (with line number for precise targeting)
 	historyManager *history.HistoryManager
 	pingManager    *connectivity.PingManager
 	sortMode       SortMode

internal/ui/tui.go

@@ -16,7 +16,7 @@ import (
 )
 
 // NewModel creates a new TUI model with the given SSH hosts
-func NewModel(hosts []config.SSHHost, configFile, currentVersion string) Model {
+func NewModel(hosts []config.SSHHost, configFile string, searchMode bool, currentVersion string) Model {
 	// Load application configuration
 	appConfig, err := config.LoadAppConfig()
 	if err != nil {
@@ -38,7 +38,7 @@ func NewModel(hosts []config.SSHHost, configFile, currentVersion string) Model {
 	styles := NewStyles(80) // Default width
 
 	// Initialize ping manager with 5 second timeout
-	pingManager := connectivity.NewPingManager(5 * time.Second)
+	pingManager := connectivity.NewPingManager(5*time.Second, configFile)
 
 	// Create the model with default sorting by name
 	m := Model{
@@ -54,6 +54,7 @@ func NewModel(hosts []config.SSHHost, configFile, currentVersion string) Model {
 		height:         24,
 		ready:          false,
 		viewMode:       ViewList,
+		searchMode:     searchMode,
 	}
 
 	// Sort hosts according to the default sort mode
@@ -64,6 +65,9 @@ func NewModel(hosts []config.SSHHost, configFile, currentVersion string) Model {
 	ti.Placeholder = "Search hosts or tags..."
 	ti.CharLimit = 50
 	ti.Width = 25
+	if searchMode {
+		ti.Focus()
+	}
 
 	// Use dynamic column width calculation (will fallback to static if width not available)
 	nameWidth, hostnameWidth, tagsWidth, lastLoginWidth := m.calculateDynamicColumnWidths(sortedHosts)
@@ -147,8 +151,8 @@ func NewModel(hosts []config.SSHHost, configFile, currentVersion string) Model {
 }
 
 // RunInteractiveMode starts the interactive TUI interface
-func RunInteractiveMode(hosts []config.SSHHost, configFile, currentVersion string) error {
-	m := NewModel(hosts, configFile, currentVersion)
+func RunInteractiveMode(hosts []config.SSHHost, configFile string, searchMode bool, currentVersion string) error {
+	m := NewModel(hosts, configFile, searchMode, currentVersion)
 
 	// Start the application in alt screen mode for clean output
 	p := tea.NewProgram(m, tea.WithAltScreen())

internal/ui/update.go

@@ -452,7 +452,7 @@ func (m Model) handleListViewKeys(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
 		if m.deleteMode {
 			// Exit delete mode
 			m.deleteMode = false
-			m.deleteHost = ""
+			m.deleteHost = nil
 			m.table.Focus()
 			return m, nil
 		}
@@ -508,15 +508,13 @@ func (m Model) handleListViewKeys(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
 		} else if m.deleteMode {
 			// Confirm deletion
 			var err error
-			if m.configFile != "" {
-				err = config.DeleteSSHHostFromFile(m.deleteHost, m.configFile)
-			} else {
-				err = config.DeleteSSHHost(m.deleteHost)
+			if m.deleteHost != nil {
+				err = config.DeleteSSHHostWithLine(*m.deleteHost)
 			}
 			if err != nil {
 				// Could display an error message here
 				m.deleteMode = false
-				m.deleteHost = ""
+				m.deleteHost = nil
 				m.table.Focus()
 				return m, nil
 			}
@@ -533,7 +531,7 @@ func (m Model) handleListViewKeys(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
 			if parseErr != nil {
 				// Could display an error message here
 				m.deleteMode = false
-				m.deleteHost = ""
+				m.deleteHost = nil
 				m.table.Focus()
 				return m, nil
 			}
@@ -548,7 +546,7 @@ func (m Model) handleListViewKeys(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
 
 			m.updateTableRows()
 			m.deleteMode = false
-			m.deleteHost = ""
+			m.deleteHost = nil
 			m.table.Focus()
 			return m, nil
 		} else {
@@ -673,11 +671,13 @@ func (m Model) handleListViewKeys(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
 	case "d":
 		if !m.searchMode && !m.deleteMode {
 			// Delete the selected host
-			selected := m.table.SelectedRow()
-			if len(selected) > 0 {
-				hostName := extractHostNameFromTableRow(selected[0]) // Extract hostname from first column
+			cursor := m.table.Cursor()
+			if cursor >= 0 && cursor < len(m.filteredHosts) {
+				// Get the host at the cursor position (which corresponds to filteredHosts index)
+				targetHost := &m.filteredHosts[cursor]
+
 				m.deleteMode = true
-				m.deleteHost = hostName
+				m.deleteHost = targetHost
 				m.table.Blur()
 				return m, nil
 			}

internal/ui/view.go

@@ -144,7 +144,11 @@ func (m Model) renderListView() string {
 func (m Model) renderDeleteConfirmation() string {
 	// Remove emojis (uncertain width depending on terminal) to stabilize the frame
 	title := "DELETE SSH HOST"
-	question := fmt.Sprintf("Are you sure you want to delete host '%s'?", m.deleteHost)
+	hostName := ""
+	if m.deleteHost != nil {
+		hostName = m.deleteHost.Name
+	}
+	question := fmt.Sprintf("Are you sure you want to delete host '%s'?", hostName)
 	action := "This action cannot be undone."
 	help := "Enter: confirm • Esc: cancel"
 

internal/validation/ssh.go

@@ -11,6 +11,7 @@ import (
 )
 
 // ValidateHostname checks if a hostname is valid
+// Accepts regular hostnames, IP addresses, and SSH tokens like %h, %p, %r, %u, %n, %C, %d, %i, %k, %L, %l, %T
 func ValidateHostname(hostname string) bool {
 	if len(hostname) == 0 || len(hostname) > 253 {
 		return false
@@ -22,7 +23,18 @@ func ValidateHostname(hostname string) bool {
 		return false
 	}
 
-	hostnameRegex := regexp.MustCompile(`^[a-zA-Z0-9]([a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])?(\.[a-zA-Z0-9]([a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])?)*$`)
+	// Check if hostname contains SSH tokens (e.g., %h, %p, %r, %u, %n, etc.)
+	// SSH tokens are documented in ssh_config(5) man page
+	sshTokenRegex := regexp.MustCompile(`%[hprunCdiklLT]`)
+	if sshTokenRegex.MatchString(hostname) {
+		// If it contains SSH tokens, it's a valid SSH config construct
+		return true
+	}
+
+	// RFC 1123: each label must start with alphanumeric, end with alphanumeric,
+	// and contain only alphanumeric and hyphens. Labels are 1-63 chars.
+	// A hostname is one or more labels separated by dots.
+	hostnameRegex := regexp.MustCompile(`^[a-zA-Z0-9]([a-zA-Z0-9\-]{0,61}[a-zA-Z0-9]|[a-zA-Z0-9]{0,62})?(\.[a-zA-Z0-9]([a-zA-Z0-9\-]{0,61}[a-zA-Z0-9]|[a-zA-Z0-9]{0,62})?)*$`)
 	return hostnameRegex.MatchString(hostname)
 }
 

internal/validation/ssh_test.go

@@ -24,6 +24,19 @@ func TestValidateHostname(t *testing.T) {
 		{"hostname ending with dot", "example.com.", false},
 		{"hostname with hyphen", "my-server.com", true},
 		{"hostname starting with number", "1example.com", true},
+		{"multiple hyphens and subdomains", "my-host-name-01.cwd.pub.domain.net", true},
+		{"multiple hyphens", "my-host-name-01", true},
+		{"complex hostname with hyphens", "server-01-prod.data-center.example.com", true},
+		{"hostname with consecutive hyphens", "my--server.com", true},
+		{"single char labels", "a.b.c.d.com", true},
+		// SSH tokens support (issue #32 comment)
+		{"SSH token %h", "%h.server.com", true},
+		{"SSH token %p", "server.com:%p", true},
+		{"SSH token %r", "%r@server.com", true},
+		{"SSH token %u", "%u.example.com", true},
+		{"SSH token %n", "%n.domain.net", true},
+		{"SSH token %C", "host-%C.com", true},
+		{"multiple SSH tokens", "%h.%u.server.com", true},
 	}
 
 	for _, tt := range tests {