On Sat, Jan 06, 2007 at 11:14:40AM +0800, coscell@xxxxxxxxxxxxxx wrote: > Thank you! It's just a tab-delimited text file. Other than the several programming-based approaches suggest so far, I'll throw in a more simplistic method. Since the columns are clearly delineated (and, in this case, by a tab character, which works perfectly as the default delimiter here), you can just use "cut" and "paste": cut -f1 inputfile > col1 cut -f2 inputfile > col2 paste col2 col1 > outputfile It's easy to generalize this to any number of columns, and any given column arrangement. _______________________________________________ Blinux-list mailing list Blinux-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/blinux-list