On Thu, Aug 05, 2021 at 10:07:12AM +0200, to...@tuxteam.de wrote: > [1] Nowadays this is a little white lie: most shells have them > as builtins, but they are supposed to behave like regular > programs, for compat. There /is/ a /bin/test, but I can't > find a /bin/[ on my system anymore.
It's in /usr/bin on Debian. unicorn:~$ type -a test [ test is a shell builtin test is /usr/bin/test [ is a shell builtin [ is /usr/bin/[ unicorn:~$ ls -ld /usr/bin/[ /usr/bin/test -rwxr-xr-x 1 root root 60224 Sep 24 2020 '/usr/bin/[' -rwxr-xr-x 1 root root 56128 Sep 24 2020 /usr/bin/test I'm a bit surprised they're not the same program. And also that they're that large. And that different in size from each other. The external versions of test and [ need to exist for POSIX conformance, and also so that you can -exec them from find(1) or other similar programs.
