I have webuilder 9.52. I want to be able to search for a particular word in a line such as "cat". This word shows up in thousands of lines in a file that has tens of thousands of lines. I want to be able to search for the word and then replace(delete) the entire line, not just the word. I've tried to figure this out to no avail maybe not smart enough to understand how to use the expressions correctly but also could find nothing on the forum or help files.
Is this possible and if so how would I build the query?