Hi, On Wed, Oct 20, 2021 at 02:44:09PM +0200, Štěpán Němec wrote: > POSIX [1] does not specify the behavior of `exit' with arguments > outside the 0-255 range, but what generally (bash, dash, zsh, OpenBSD > ksh, busybox) seems to happen is the shell exiting with status & 255 > [2], which results in zero exit for certain non-zero arguments. Standards aside, failed=256 is an actual bug: | % bash -c "exit 255"; echo $? | 255 | % bash -c "exit 256"; echo $? | 0 | % bash -c "exit 257"; echo $? | 1 Thanks, Phil
