POSIX.1-2024 defines dollar-single-quotes

[cD1rtX3]

For bugs with existing features

• Rule Id: SC3003
• My shellcheck version: 0.11.0
• The rule's wiki page does not already cover this
• I tried on https://www.shellcheck.net/ and verified that this is still a problem on the latest commit

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

#!/bin/sh
echo $'\n'

Here's what shellcheck currently says:

In POSIX sh, $'..' is undefined.

Here's what I wanted or expected to see:

Nothing.

Reference:

Additional comments:

The site is down. It doesn't say it is, but it hangs indefinitely when I try to load it.

[e-kwsm]

duplicate of #3098

[brother]

This is marked solved in the linked issue(s) but remain present at shellcheck.net... @koalaman have the deployment of HEAD misbehaved for shellcheck.net?

#3406

This issue is solved as it stands IMHO.