#CLI

5 snippets

• Bash

  Parse command-line flags with getopts

  Handle -v, -o FILE and -h in a bash script with getopts and a usage message.

• Python Tested

  Command-line tool skeleton with argparse

  A small CLI with a positional argument, flags, a main function and proper exit codes.

• Bash

  Timestamped tar.gz backup that keeps the newest N

  Archive a directory with a sortable timestamp and delete older backups beyond a retention count.

• Bash

  Delete local Git branches that are already merged

  Clean up merged local branches safely, excluding main, master, develop and the current branch.

• Bash

  Safe header for Bash scripts

  Fail fast on errors, unset variables and broken pipes, and clean up temp files with a trap.