What is “tmux-cssh” Package?

TMUX with a “ClusterSSH”-like behavior
For more details: https://github.com/dennishafemann/tmux-cssh

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 tmux-cssh.

  brew install tmux-cssh

Now, use tmux-cssh!