Sometimes I want to delete lines that doesn’t match a particular pattern, for those you can do a regex
Breaking it down
^ means start of the line
\(.*WORD\) it’s the atom word been searched
\@! it’s the important command that negates the atom word (it’s not
exactly a negation, please do a :help @! for more info).
.*$ everything else until the end of line.
Now I could do this to delete them:
There are other very interesting use cases for this, for example, you could match words that are not followed by some other pattern:
This will find all cases of foo not followed by bar.