Let's create ruby script command — Who decide command must be binary?

COMMAND.md

Let's create ruby script command — Who decide command must be binary?

• Put a script file in your $PATH directories.
• Write shebang in that script.
• Give execute permission to script.

Create ruby script in your command PATH

$ touch /usr/local/bin/ruby-echo
$ chmod +x /usr/local/bin/ruby-echo

Simple script

Just echo command arguments.

#!/usr/bin/env ruby

ARGV.each do |argv|
  puts argv
end

$ chmod +x ruby-echo

Hit that command

$ ruby-echo Are you happy hacking

Are
you
happy
hacking

My Versions

• ruby 2.5.1p57 (2018-03-29 revision 63029) [x86_64-darwin17]
• Mac OS X High Sierra