What is “shtool” Package?

GNU’s portable shell tool
For more details: https://www.gnu.org/software/shtool/

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 shtool.

  brew install shtool

Now, use shtool!