Piping output of jq to tr to get rid of quotes

[JCGoran]

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:

The jq program is sometimes used like this:

$ printf '"string\\\""' | jq '.' | tr -d '"'
string\

but the user probably intended the output to be something like this instead (and this seems to be a frequent question):

$ printf '"string\\\""' | jq -r '.'
string"

Here's what shellcheck currently says:

Nothing.

Here's what I wanted or expected to see:

Emit a warning to not use tr, but instead use the -r (--raw-output) flag of jq.