khm

A compact CLI and TUI tool for managing SSH known_hosts files.

Installation

Download

Download from releases

Using Go install

go install github.com/FlameInTheDark/khm@latest

From source

Clone and build:

git clone https://github.com/FlameInTheDark/khm.git
cd khm
go mod tidy
go build -o khm

Commands

# Launch TUI for default known_hosts
khm

# Launch TUI explicitly
khm ui

# List hosts
khm list

# Create backup of known_hosts
khm backup

# Stash all keys for a host into stash_hosts
khm stash <host>

# Delete all keys for a host from known_hosts
khm delete <host>

# Show help
khm --help

File selection

You can control which known_hosts file is used:

• --file, -f:
  • Custom known_hosts path for all commands.
• SSH_KNOWN_HOSTS:
  • Used when --file is not set.
• Default:
  • ~/.ssh/known_hosts if nothing else is provided.

TUI

Key bindings (known_hosts view):

• Up/Down: navigate hosts
• /: filter (live)
• Enter: toggle details for selected host
• d: delete selected host (with confirmation)
• s: stash selected host into stash_hosts
• t: toggle between known_hosts and stash_hosts view
• ?: toggle help
• q / Ctrl+C: quit

Stash behavior:

• Stash writes entries to stash_hosts (by default next to known_hosts).
• Stash view lets you inspect stashed hosts and restore them back.
• Restoring avoids adding duplicate keys to known_hosts.

Examples

Basic:

# TUI for default known_hosts
khm

# TUI for a specific known_hosts
khm --file /path/to/known_hosts

# Stash a host
khm stash github.com

# Delete a host
khm delete github.com

Development

git clone https://github.com/FlameInTheDark/khm.git
cd khm
go mod tidy
go test ./...
go build -o khm

Structure

• main.go: CLI entry and commands
• ui.go: TUI launcher and helpers
• internal/knownhosts: known_hosts parsing and file operations
• internal/ui: TUI model and rendering

Technical details

• Go 1.21+
• Bubble Tea, Bubbles, Lipgloss
• Minimal, focused dependency set