This qref is written for a semi-knowledgable UNIX user who has just come up against a problem and has been advised to use sed to solve it. Perhaps one of the examples can be quickly modified for immediate use.
Sed is extremely powerful, and you can do things in sed that you can’t do in any standard word processor. And because sed is external to the word processor and comes with every Unix system in the world, once you learn sed you’ll have a very handy tool in
the number #1 page in Google on ‘sed’!