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The one-liner from mklement0 in this discussion on POSIX-compliant scripts and getting the full path. It's failing ShellCheck. Removing the space causes it to no longer work.
https://stackoverflow.com/questions/29832037/how-to-get-script-directory-in-posix-sh

dir=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd) ^-- SC1007: Remove space after = if trying to assign a value (for empty string, use var='' ... ).

Removing CDPATH= results in ShellCheck passing, and it still seems to work, but...

The CDPATH= prefix takes the place of > /dev/null in the original command: $CDPATH is set to a null string so as to ensure that cd never echoes anything.

Looks like it's needed. So, is there any way to make this pass ShellCheck? Or just ignore it?

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Yes, you can specify a quoted empty value:

dir=$(CDPATH='' cd -- "$(dirname -- "$0")" && pwd)

as suggested by ShellCheck:

(for empty string, use var='' ... )

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  • Thanks for the clarification. I saw var=''..., and my brain processed that completely wrong. I need to update my terminal preferences. I clearly can't read it right! Commented Jun 16, 2022 at 13:18

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