On Fri, 28 Dec 2007, Nathan Aubrey wrote: > tac . > I love the ingenious designs of *nix. Not all *nix. tac(1) is from coreutils commonly used on Linux systems. Many *nix systems don't have "tac". I use "tail -r" on some systems. And use sed on other systems. Do a google search and you will find many ways to reverse a file.