Re: Another shellcheck rant...

On 05.03.2025 19:50, Kaz Kylheku wrote:

On 2025-03-05, Kenny McCormack <gazelle@shell.xmission.com> wrote:

I have a loop like:
>
    exec 3< somefile
    while read -ru3 fn; do
ffmpeg -i "$fn" ... "OutDir/$fn"
    done
>
Shellcheck flags both the "read" and the "ffmpeg", with messages to the
effect that ffmpeg might swallow up stdin - not realizing that the -u3
means the "read" is not reading from stdin.

 
Maybe the shellcheck code does know about -u, but simply doesn't
recognize it when it is clumped like that, together with another
option and its own argument.

This is actually what I had just tried out of curiosity (with that
tool that I never used); the result is the same for 'read -r -u3'.

Janis