Greetings, I have two lists that are hovering somewhere between 30-60K subscribers (each) and I need to (for mysterious reasons not my own, can you say...management?) compare the two lists and find out the total number of unique users. I know one way which is to just get the lists on my unix box then have a script chug through them looking for dupes, but is there an easier way? Question number 2: The brilliant people in marketing added a whole bunch of people and...added them with a comma at the end. I hate to say it, but despite my best efforts, I can't get rid of them, any ideas? Thanks in advance, Carl -- Carl Forsythe Unix Systems Adminstrator, Berkeley Systems (510) 540-5535 x 259