#Tourmaline

A configurable ruby interpreter for the command line

gem install tourmaline

Tourmaline's functionality can be extended via ruby scripts (*.rb files). Just place them inside the ~/.tourmaline/lib folder.

As an example, create the file ~/.tourmaline/lib/plugin_file.rb with the code:

def execute_plugin
  puts "plugin executed!"
end

Given that, you will be able to run rb 'execute_plugin'

ping www.google.com | rb 'lines.include?("time=").split("time=")[1].puts'

Vanilla ruby:

ping www.google.com | ruby -e 'STDIN.each_line.lazy.select{|l| l.include?("time=")}.map{|l| l.split("time=")[1]}.each{|l| puts l}'

echo -e '1\n5\n3\n7\n' | rb 'lines.take(3).to_i.inject(:+).puts'

Vanilla ruby:

echo -e '1\n5\n3\n7\n' | ruby -e 'puts STDIN.each_line.take(3).map{|l| l.to_i}.inject(:+)'

rb 'lines.take_while{|l|l!="quit"}.puts'

Vanilla ruby:

ruby -e 'STDIN.each_line.lazy.take_while{|l| l.chomp!="quit"}.each{|l| puts l}'

rb 'doing{["rock", "paper", "scissors"].sample}.take(2).puts'

Vanilla ruby:

ruby -e '2.times{puts ["rock", "paper", "scissors"].sample}'