You should always type check your shell scripts as well. For example, you just:

    $ shelltypes script.sh
    # Welcome to shelltypes v 3.23.2
    # type ‘help’ if you’re stuck
    >>> {1) # import POSIX;;
    Importing 73 items.
    >>> {2} # append loadpath “/opt/local/shelltypes/base”;;
    >>> {3} # import base::YOURPROJECT;;
    Importing 15 items.
    >>> {4} # check “YOURSCRIPT.sh”
    Parsing YOURSCRIPT.sh.
    Reticulating splines.
    Expanding aliases.
    Analyzing free shell environment variables.
    Found inconsistencies in PATH.
    Warning: Low battery!!!
    Warning: found free type for ‘shred’, ignoring.
    Warning: use of sudo requires password under /etc/sudoers.
    Warning: this utility is fake.
    Error: use of cat impossible in the presence of mutt.
    Found 15 errors.
    Try again. Goodbye.
    $

Then you can be pretty sure your script isn’t going to do unnecessary harm, and has some proper guardrails in place.