On Friday 23 February 2007 11:24 am, Clay Wells wrote: > sed -e '/^mx/d' < mxremove.txt > mxremoved.txt Yes, except I don't want to remove both lines, just the mx<tab> line. However, I've solved that problem. I can change mx0 to ffff in all files easily enough, temporarily, and change them back later. So this works. However, it's the loop code that's driving me crazy. Help. Thanks. Jeff -- Jeff Lasman, Nobaloney Internet Services 1254 So Waterman Ave., Suite 50, San Bernardino, CA 92408 Our blists address used on lists is for list email only Phone +1 909 266-9209, or see: "http://www.nobaloney.net/contactus.html"