Request: Validate toolchain

[vanyauhalin]

Hello Vidar! I have a request. Will SpellCheck be able to check not only script syntax in the future but also the commands used in the script? My problem is that I like to use long flags in my scripts, but when I need to write something for BusyBox, I often forget that it does not support them in common. It would be great if this could be tracked in advance. Thanks!

For new checks and feature suggestions

• https://www.shellcheck.net/ (i.e. the latest commit) currently gives no useful warnings about this
• I searched through https://github.com/koalaman/shellcheck/issues and didn't find anything related

Here's a snippet or screenshot that shows the problem:

#!/bin/busybox sh

echo "a b" | cut --delimiter " " --fields 2 # GNU cut
echo "a b" | cut -d" " -f2                  # BusyBox cut

Here's what shellcheck currently says:

nothing

Here's what I wanted or expected to see:

BusyBox cut command does not support --delimiter option, replace it with -d.
BusyBox cut command does not support --fields option, replace it with -f.

[Ordoviz]

Related: #2758 and #2902