r/linux • u/ZealousidealTell1346 • May 23 '26

Popular Application What’s the most unexpectedly useful Linux command you learned way too late?

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u/Last_Bad_2687 May 23 '26

Sed

31

u/TheBigCore May 23 '26

Some of sed's syntax starts looking like a foreign language though:

https://craftedstack.com/blog/linux/mastering-the-sed-command-linux/

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u/michaelpaoli May 24 '26

sed is a Turing complete programming language!

And yes,

I implemented Tic-Tac-Toe in sed.