Vim search for a pattern and if occurs delete to end of line

Question

I am trying to search a text file for a certain pattern. If this pattern occurs then it means that the rest of the line is not needed and therefore can be deleted.

I ha

Answer 1

%s/\\(replay-pattern-later\\) pattern2/\1/gc

This will replay pattern1 but eliminate pattern2. Using "/gc" to apply globally (keep going) and prompt for each occurence.