Try to be standard
You may use bash scripts from GitHub, and you may notice that there is a standard option scheme that is followed. It's not required, but it is preferable.
These are some of the commonly used options:
-a: List all items-c: Get a count of all items-d: Output directory-e: Expand items-f: Specify a file-h: Show the help page-i: Ignore the character case-l: List a text-o: Send output to a file-q: Keep silent; don't ask the user-r: Process something recursively-s: Use stealth mode-v: Use verbose mode-x: Specify an executable-y: Accept without prompting me