These ruby and python scripts provide functions that allow you to copy their arguments to the clipboard.

clip.py

# Put the following function definition into a file called ~/.pythonrc
# and add the line
#     export PYTHONSTARTUP="$HOME/.pythonrc"
# to your .bash{rc,_profile}

import os

def clip(x):
    os.popen('pbcopy','w').write(str(x))

clip.rb

# Put one of the following function definitions into a file called ~/.irbrc
# irb will run this file on startup

# For OS X
def clip(x)
  IO.popen("pbcopy", "w") do |pb|
    pb.write(x.to_s)
  end
  x
end

# For Linux
# Install xclip first ([sudo] apt-get install xclip on debian-like systems)
# Note: I have not tested this yet, but the internets seem to suggest xclip is the answer
#       If this does not work, try changing the command to "xclip -selection clipboard"
def clip(x)
  IO.popen("xclip", "w") do |xc|
    xc.write(x.to_s)
  end
  x
end