What is “xmlstarlet” Package?

XML command-line utilities
For more details: https://xmlstar.sourceforge.io/

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 xmlstarlet.

  brew install xmlstarlet

Now, use xmlstarlet!