sort -n +2 list.txt | awk '{print $2}' | grep - list2.txt
list.txt list2.txt server1 10.1.1.1 server1 10.1.1.1 server2 10.1.1.2 server2 10.1.1.2 server3 10.1.1.3 server3 10.1.1.3 ... server4 10.1.1.4 ... What I was hoping was the last grep would take the ip addresses from the first file search for this IP address in the second file. It didn't do what I expected. Right up to the last pipe works. david _______________________________________________ Redhat-list mailing list [EMAIL PROTECTED] https://listman.redhat.com/mailman/listinfo/redhat-list