Delete Every line with that Word

Question

I want to delete the whole line if the line contains a specific word for example \"cat\".

If \"cat\" is in this line, delete the whole

Answer 1

It is a two step process in notepad++. First do a regex replace

Find what: ^(.*?)(cat)(.*?)$
Replace with: 

Next do a extended replace with

Find what: \r\n\r\n
Replace with: \r\n

Assuming your file was created on Windows. However this will also remove all lines that previously had no content.

Edit: Probably better to do the bookmark thing the other guy suggested.