ifne - Man Page

• Run the specified command if and only if stdin is not empty: ifne command command_options
• Run the specified command if and only if stdin is empty, otherwise pass stdin to stdout: ifne -n command command_options

tldr.sh

ifne [-n] command

ifne runs the following command if and only if the standard input is not empty​.

-n

Reverse 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 -E 'set escape' -s "Core files found" root

Copyright 2008 by Javier Merino <cibervicho@gmail​.com>

Licensed under the GNU GPL