Larvitz  4d ago

New post: shell tricks that aren't exactly secret, but aren't always taught either.

Split into two sections: what works on any POSIX sh (FreeBSD, OpenBSD, Alpine...) and what's Bash/Zsh-specific. Because not everyone is on Linux with bash as their login shell.

Things like CTRL+W, $_, pushd/popd, fc, set -euo pipefail caveats, and more.

https://blog.hofstede.it/shell-tricks-that-actually-make-life-easier-and-save-your-sanity/

#unix #bash #shell #sysadmin #freebsd #linux #cli

Shell Tricks That Actually Make Life Easier (And Save Your Sanity)

Watch someone backspace 40 characters instead of pressing CTRL+W, and you’ll understand why this list exists. A collection of shell tricks-grouped by what works everywhere and what’s Bash/Zsh-speci...

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Show threadπ™Ήπš˜πšŽπš• π™²πšŠπš›πš—πšŠπš β™‘ πŸ€ͺ

@Larvitz side note, I don’t think OpenBSD has POSIX sh. Quoting the man page

This version of sh is actually ksh in disguise. As such, it also supports the features described in ksh(1). This manual page describes only the parts relevant to a POSIX compliant sh.

Just saying as I got caught thinking my scripts were POSIX compliant on OpenBSD and failed when running them using FreeBSD sh πŸ€¦β€β™‚οΈ

Mar 26 at 9:47amWeb
Show threadLarvitz  4d ago
@joel thanks for the hint. I actually wasn’t aware of that! Always thought it’s defaulting to a korn shell.