What is “pssh” Package?

Parallel versions of OpenSSH and related tools
For more details: https://code.google.com/archive/p/parallel-ssh/

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 pssh.

  brew install pssh

Now, use pssh!