Configuration Information:
Machine: x86_64
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS: -g -O2
uname output: Linux steelpick 6.12.37 #1-NixOS SMP PREEMPT_DYNAMIC Thu Jul 10
14:05:15 UTC 2025 x86_64 GNU/$
Machine Type: x86_64-pc-linux-gnu
Bash Version: 5.3
Patch Level: 0
Release Status: release
Description:
When running "cd ''", bash 5.3 fails with "cd: null directory"
while previous versions succeeded without an error and no
directory was changed. I'm not sure whether this is considered a
bug or not. The SUS[1] says "If directory is an empty string,
the results are unspecified.". However, I didn't find anything
related to this change in the NEWS file for bash-5.3. Other
shells (zsh, dash, osh) seem to accept empty directory as cd
argument.
[1]: https://pubs.opengroup.org/onlinepubs/9699919799/utilities/cd.html
Repeat-By:
cd ''
Best regards,
-Michal
