stderr rediection

With tcsh, you can redirect stderr using ">& filename".

http://www.m5hosting.com/pipermail/sdbug/2004-May/002617.html

2.9) How do I redirect stdout and stderr separately in csh? In csh, you can redirect stdout with ">", or stdout and stderr together with ">&" but there is no direct way to redirect stderr only. The best you can do is ( command >stdout_file ) >&stderr_file which runs "command" in a subshell; stdout is redirected inside the subshell to stdout_file, and both stdout and stderr from the subshell are redirected to stderr_file, but by this point stdout has already been redirected so only stderr actually winds up in stderr_file. If what you want is to avoid redirecting stdout at all, let sh do it for you. sh -c 'command 2>stderr_file'

Tech notes

stderr rediection