Having looked at "man join" wasn't sure of it's use here. Unknown number of files, constant is extension .list (For testing purposes only using two) cat *.list >> output.joined | sort -u How can I test if the output.joined, is indeed the combined two lists with dupes removed. -- Regards, Frank - I check for new mail app. 20min www.frankly3d.com -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org