# sshrm

Remove an entry from `~/.ssh/known_hosts` by host name or by line number.

## Usage

```bash
sshrm [-h|--help] [--no-backup] host|line_number
```

## Options

- `-h`, `--help` Show help and exit.
- `--no-backup` Skip creating `~/.ssh/known_hosts.sshrm.bak`.

## Examples

Remove by host:

```bash
sshrm example.com
```

Remove by line number:

```bash
sshrm 12
```

Remove without backup:

```bash
sshrm --no-backup example.com
```

## Notes

- Line numbers must be positive integers.
- Extra arguments are rejected.
- The script asks for confirmation before removal.
- The script edits `~/.ssh/known_hosts`.
- Keep a backup if you need to recover entries.