Justin Conover <justin.conover(a)gmail.com&gt; wrote: Perhaps the "sort" is mistyped somehow (i.e., you snuck in a correction into the command name)? Perhaps the sort it is finding is not sort(1), i.e., /bin/sort (which(1) should answer that, try calling that one explicitly). Perhaps the PATH is borked? It could be a error message from the sort program being called (yes, I've seen my share of less than useful messages in my time). What shell are you using? The package containing sort could be broken, try "rpm -Vf /bin/sort". Try something like "sort /etc/passwd" or "/bin/sort /etc/passwd", if it fails, try strace sort /etc/passwd 2> /tmp/SOMEPLACESAFE or the same with /bin, and look at what it tries to do and where it fails. That should give some clue on what is going on here. -- Dr. Horst H. von Brand User #22616 counter.li.org Departamento de Informatica Fono: +56 32 2654431 Universidad Tecnica Federico Santa Maria +56 32 2654239 Casilla 110-V, Valparaiso, Chile Fax: +56 32 2797513