Replace Text In a File In-Place With Sed

Yeah, yeah, this is common knowledge – but I always forget the proper syntax. :p

Anyhow, say you’ve got a file with ICANHAZCHEEZBURGRZ somewhere in it, and you want to replace that hilarious phrase. Here’s what you do:

sed -i 's/ICANHAZCHEEZBURGRZ/IHAZACHEEZBURGR/' filename

This will replace ‘ICANHAZCHEEZBURGRZ’ with ‘IHAZACHEEZBURGR’.

Such a thing is extremely useful when scripting the configuration of an insane amount of systems. (*wink wink, nudge nudge*)