|ifne [-n] command|
ifne runs the following command if and only if the standard input is not empty.
-nReverse operation. Run the command if the standard input is empty.
Note that if the standard input is not empty, it is passed through ifne in this case.
find . -name core | ifne mail -s "Core files found" root
Copyright 2008 by Javier Merino <email@example.com>
Licensed under the GNU GPL