notify-send

#!/usr/bin/env ruby
require 'optparse'

options = ARGV.getopts 'i:t:', 'hint:'
options.delete 't' # -t is the timeout value, growl doesn't have this
options['t'] = ARGV.shift if ARGV.length > 1
options['m'] = ARGV.shift

opt_str = ''
opt_str += %[ -m "#{options['m']}"] if options['m']
opt_str += %[ -t "#{options['t']}"] if options['t']
opt_str += %[ --image "#{options['i']}"] if options['i']

system 'growlnotify' + opt_str