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sed-gnu-multiline

Kiril Panayotov Blagoev

Date created: 2025-02-14

Go wild here

This allows for sed to operate on multiline input, i.e. an entire file or multiline console output. For those pesky times when you want to use it to replace a new line symbol with a comma and a space for example.

sed ':a;N;$!ba;s/\n/ /g' file

Arguments​

- :a create a label 'a'
- N append the next line to the pattern space
- $! if not the last line, ba branch (go to) label 'a'
- s substitute, /\n/ regex for new line, / / by a space, /g global match (as many times as it can)