gistfile1.rb

# Slop version 3

require 'slop'

opts = Slop.optspec(<<-SPEC)
n,name=  Your name
p,pass=? An optional password
A,auth   Use authentication (requires password)
SPEC

opts.parse %w[ --name Lee -p 1c03 ]

p opts.fetch_option(:pass).accepts_optional_argument? #=> true
p opts.to_hash #=> {:name=>"Lee", :pass=>"1c03", :auth=>nil}