What is “readline” Package?

Library for command-line editing
For more details: https://tiswww.case.edu/php/chet/readline/rltop.html

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 readline.

  brew install readline

Now, use readline!