Hello, I have two lists of names, A and B. I need to produce three lists:
1) names only on A
2) names only on B
3) names on both A and B
I also have a list with all the names on A and B, C.
Can anyone think of Unix tools or quick scripts to do this?
Thanks! Using the -1, -2, -3 flags I was able to supress the output and get exactly what I wanted.comm [OPTION]... LEFT_FILE RIGHT_FILE DESCRIPTIONCompare sorted files LEFT_FILE and RIGHT_FILE line by line.-1 suppress lines unique to left file -2 suppress lines unique to right file -3 suppress lines that appear in both files
2009-06-11 22:51:48
It's worth noting that you need to SORT your input files before feeding them into comm. This can be done like this:comm <(sort -u left_file) <(sort -u right_file)
Alex Brown
2009-06-11 22:57:12