What is "pkill"

'''pkill''' (see [[pgrep]]) is a command-line utility initially written for use with the Solaris 7 operating system. It has since been reimplemented for Linux and some BSDs.

As with the [[Kill (command)|kill]] and [[killall]] commands, '''pkill''' is used to send signals to processes. The '''pkill''' command allows the use of extended regular expression patterns and other matching criteria.