Re: PIPESTATUS differs from $? for compound command

[microsuxxor]

its a pass return codes passthru question ..

.. id like it passthru too , that it returns the upper cmds return codes ..

On Mon, Dec 9, 2024, 6:22 PM Ulrich Müller <ulm@gentoo.org> wrote:

> Configuration Information [Automatically generated, do not change]:
> Machine: x86_64
> OS: linux-gnu
> Compiler: x86_64-pc-linux-gnu-gcc
> Compilation CFLAGS: -march=native -ggdb -O2 -pipe
> uname output: Linux urania 6.6.62-gentoo #1 SMP Wed Nov 20 14:40:27 CET
> 2024 x86_64 AMD Ryzen 7 PRO 7730U with Radeon Graphics AuthenticAMD
> GNU/Linux
> Machine Type: x86_64-pc-linux-gnu
>
> Bash Version: 5.2
> Patch Level: 37
> Release Status: release
>
> Description:
>         For a compound command like "if" or "while" and with
>         an unsuccessful test, the last element of PIPESTATUS is not the
>         return status of the compound but that of the test command.
>         For example, "if false; then :; fi" returns 0 but ${PIPESTATUS[0]}
>         is 1.
>
>         If the pipeline consists of more than one command, like
>         "if false; then :; fi | true" or "true | if false; then :; fi"
>         then it behaves as I would expect, i.e. all elements of
>         PIPESTATUS are zero.
>
> Repeat-By:
>         $ if false; then :; fi
>         $ echo "ret = $?, status = ${PIPESTATUS[*]}"
>         ret = 0, status = 1
>
>