$ pkg up
$ pkg i ruby git ffmpeg tree zip unzip
$ git clone https://github.com/IT-World-ID/z-tools
$ cd z-tools
$ ruby main.rb

$ sudo apt-get update
$ sudo apt-get install git ffmpeg ruby tree zip unzip
$ git clone https://github.com/IT-World-ID/z-tools
$ cd z-tools
$ ruby main.rb