Bash Cli Tui

Overview

Implement reliable Bash CLIs and TUIs that work both interactively and in automation (--yes, CI, cron, SSH).

Workflow

1. Inspect current script entrypoints, flags, and side effects.
2. Normalize CLI contract: --help, --verbose, --yes, clear exit codes.
3. Implement safe execution model: strict mode, quoting, cleanup traps, non-destructive defaults.
4. Add TUI layer with graceful fallback to plain prompts when no TTY/tooling.
5. Validate with a smoke matrix before merge.

CLI Contract

• Use set -euo pipefail by default.
• Parse args with case loop, not positional guessing.
• Keep subcommands explicit (cmd <subcommand> [options]).
• Return stable codes:
  • 0 success
  • 2 usage/invalid args