wtf, zsh
% uname -sr
FreeBSD 12.1-RELEASE-p10
% for sh in sh csh bash zsh ; do printf "%-8s" $sh ; $sh -c 'echo \\x21' ; done
sh \x21
csh \x21
bash \x21
zsh !
% cowsay wtf, zsh
__________
< wtf, zsh >
----------
\ ^__^
\ (oo)\_______
(__)\ )\/\
||----w |
|| ||
I mean. Bruh. I know it’s intentional & documented & can be turned off, but every other shell defaults to POSIX semantics…
BTW:
% ln -s =zsh /tmp/sh % /tmp/sh -c 'echo \x21' \x21
FTFY ;)
sh zsh: command not found: sh
csh zsh: command not found: csh
bash zsh: command not found: bash
zsh !