On Debian (and most Linux distributions), the behavior you want—where the shell suggests installing a package when a command is not found—is provided by the command-not-found package.

How to Enable This on Debian 13

1. Install the command-not-found package:

   bash
   Copy
   sudo apt update
   sudo apt install command-not-found

2. Enable the feature: The command-not-found package is usually enabled by default after installation. If not, ensure your shell (e.g., bash or zsh) sources the /etc/bash_command_not_found script. For bash, this is typically handled in /etc/bash.bashrc or /etc/profile.d/command-not-found.sh.

3. Restart your shell or open a new terminal.

4. Test it: Run josm again. If the package is available in the repositories, you should see the suggestion to install it.

If It Still Doesn’t Work

• Check if the package is in the repositories: Run apt search josm to confirm the package exists.

• Manually source the script: If the feature is not enabled automatically, add this line to your ~/.bashrc or ~/.zshrc:

  bash
  Copy
  source /etc/bash_command_not_found

  Then reload your shell:

  bash
  Copy
  source ~/.bashrc

• For zsh users: Ensure the command-not-found plugin is enabled in your zsh configuration.