I don't know if this was the best way, but I was able to do it like this: sort participants | uniq > temp1 sort participants > temp2 comm -1...
I've changed things slightly. Instead of removing them completely I'd like to leave on, and only take the dupes out. I know I can do that with...
I have a text file full of user-submitted email addresses. I want to remove the duplicate records, but it isn't as simple as using "uniq." When I...
Separate names with a comma.