coscell at mail.batol.net, le Sat 06 Jan 2007 23:14:40 +0800, a écrit : > Thank you! It's just a tab-delimited text file. You can use cut for this: cut -d " " -f 1-3,5,4,6-8 (the character between the two " is a tab, which you can type by pressing ^V then the tab. Here columns 3 and 4 are exchanged. Samuel