wrapper script for me in Ubuntu marveric

wmctrl.rb

#!/usr/bin/env ruby
# DIRECTION=ARGV[0]

# A move and resize argument has the format 'g,x,y,w,h'.  All five
# components are integers. The first value, g, is the  gravity  of
# the  window,  with  0  being  the most common value (the default
# value for the window). Please see  the  EWMH  specification  for
# other values.

# The four remaining values are a standard geometry specification:
# x,y is the position of the top left corner of  the  window,  and
# w,h  is  the  width and height of the window, with the exception
# that the value of -1 in any position is interpreted to mean that
# the current geometry value should not be modified.

class Window
  attr_reader :w, :h
  RESET_CMD =" -b remove,maximized_vert,maximized_horz"
  def wmctrl(geometory)
    cmd = "wmctrl -r :ACTIVE: #{RESET_CMD};wmctrl -r :ACTIVE: -e 0,#{geometory.join(',')}"
    if NOOP
      puts cmd
      return
    end
    system cmd
  end

  def winctrl_select(appname, launch_cmd)
    cmd = "wmctrl -a #{appname} || #{launch_cmd} "
    if NOOP
      puts cmd
      return
    end
    system cmd
  end

  def select_gvim() winctrl_select("GVIM", "gvim"); end
  def select_ff() winctrl_select("Firefox", "firefox"); end

  def initialize
    @w , @h = `wmctrl -d 1`.split("\n").first.scan(/DG: (\d+x\d+) /).to_s.split('x').map(&:to_i)
    [@w, @h]
  end
                     # [ x, y, w, h ]
  def left()  wmctrl [0,0, w/2, h]   ; end
  def right() wmctrl [w/2,0, w/2, h] ; end
  def up()    wmctrl [0,0, w, h/2]   ; end
  def down()  wmctrl [0,h/2, w, h/2] ; end
end

COMMANDS=%w(left right up down select_gvim select_ff)
def help
  warn "#$0 #{COMMANDS.join('|')}"
end

NOOP = ARGV.delete('-n')

command = ARGV[0]
unless COMMANDS.include?(command)
  help
  exit 1
end

Window.new.send command