Consider adding shellcheck-repl

[HenrikBengtsson]

(Disclaimer: I'm one of the authors)

• shellcheck-repl
• Title: Validation of Shell Commands Before Evaluation
• URL: https://github.com/HenrikBengtsson/shellcheck-repl
• Requirements: ShellCheck and Bash (>= 4.4)

This tool adds ShellCheck protection on top of your Bash read-eval-print loop (REPL). For example, typing the following at the prompt and hitting ENTER:

$ for w in "$words"; do echo "$w"; done

prevents it from being evaluated with the following message:

$ for w in "$words"; do echo "$w"; done
           ^-- SC2066: Since you double quoted this, it will
	       not word split, and the loop will only run once.

This gives you a chance to fix the mistake before re-submitting.