fai-sed(1)

💅 fai-sed — the manual page, but make it cute

okay bestie, welcome to fai-sed 💖 this is from the General Commands Manual section, and honestly? it's giving "responsible little helper who refuses to touch your file for no reason." iconic behavior fr fr.

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🌸 NAME 🌸

fai-sed — call sed on a file but check for changes before writing ✨

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🎀 SYNOPSIS 🎀

fai-sed CMD FILE

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💫 DESCRIPTION 💫

So here's the vibe: you run a sed script — we're calling that script CMD in here — on FILE. But!!! it does not overwrite the file if nothing changes. Like, if your sed did absolutely nothing? no write. no timestamp drama. the file stays untouched. periodt. 💅

If $target is defined, use it as the prefix for the path to FILE. yes literally as a prefix, that's the whole rule 🫶

Exit status 0 means success, bestie 🎉 a nonzero value means failure 😭 (that's the entire definition of the two, no cap).

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✨ OPTIONS ✨

• -E — if fai-sed changed the file, exit with 9 instead of 0. yes it's a lil unhinged. it's also exactly what it does 💅
• -n — dry run 🧚 it prints whether the file would have changed, but does not change it. nothing gets touched. main character observation-only energy 👑

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🌈 EXAMPLES 🌈

okay let's see her in action:

$ fai-sed 's/foo/bar/g' /etc/motd

Replace foo with bar in the file /etc/motd. slay 🍓

$ fai-sed 's/123/ABC/g; /XXX/d' /etc/motd

Replace 123 with ABC and delete all the lines that contain the string XXX. two jobs, one command, she ate 🔥

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🔍 SEE ALSO 🔍

This program is part of FAI (Fully Automatic Installation). See the FAI manual for more information on how to use fai-monitor. The FAI homepage is https://fai-project.org 🦋

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👑 AUTHOR 👑

Thomas Lange <lange@cs.uni-koeln.de> 💜

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that's the whole page, bestie — no notes, no skips, every flag accounted for 🌸 and a lil sign-off: this beauty is FAI 5, dated 2020, and she has been serving correct sed behavior ever since 💖✨🫶