Question

I need to replace a bit of text in multiple css files, but ony the first occurence.

I’ve tried replacing with:

perl -pi -e 's/(width:).*;/$1 100%;/' filename.css

But this replaces the value after every occurrence of ‘width:’ in the file, even though i’m not using the /g modifier.
I’m running this on a recent Ubuntu machine.

Answer 1

You can stop the replacement after the first one:

perl -pi -e '$a=1 if(!$a && s/(width:).*;/$1 100%;/);' filename.css