What is “pidof” Package?

Display the PID number for a given process name
For more details: http://www.nightproductions.net/cli.htm

Installation

• Open Terminal by pressing command+space then type terminal and hit Enter key.
• Install homebrew first.

  ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null

• Install pidof.

  brew install pidof

Now, use pidof!