How to create subcommands for Ruby programs?

Question

I am writing a Ruby CLI (Command Line Interface) program and I would like to be able to call subcommands similar to what rails does when you call rails generate ... or rails server etc. Can anyone point me in the right direction on how to do this?

NullUserException · Accepted Answer · 2010-09-11 03:24:50Z

1

You just need to get the command line arguments and work with those. They are stored in the global array ARGV:

ARGV.each do|a|
  puts "Argv: #{a}"
end

That prints out the arguments sent to the ruby script

answered Sep 11, 2010 at 3:24

NullUserException

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Jordan Running · Accepted Answer · 2010-09-11 03:29:45Z

1

The standard library's OptionParser class exists specifically for handling command-line arguments like this. Here's a tutorial. It should simplify your work considerably.

answered Sep 11, 2010 at 3:29

Jordan Running

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