Recently a friend (Ishan Karve) of mine introduced me to nifty small script/ program called 'cowsay' which has makes life on the Linux command terminal interesting and amusing. 
Pity, Windows users won't be able to use it.
It is basically a ASCII cow which  moooos...... to you interesting quotes (when linked with the 'fortune' program) or you can make it say un-interesting things as shown below (when used alone!!) :-
__________________________
< My name is Gantayet >
 ----------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||--------w |
                ||     ------||
The program developer 
Tony Monroe mentions that he decided on this ASCII cow mooing as cows were quite popular in his life!!! Wow! And I thought only Indian revered cows!! He says: "
ASCII cows have been wandering in herds around the net for a long time, bringing good will and unnecessary bovine humor to all who meet them"
You can check out the cows grazing on the Internet at this linked site: 
Canonical list of cows 
The program is pretty easy to install - just get the package from 
Tony Monroe's cowsay site  or if you are on a Debian system (like Ubuntu, Mint etc), just do a '
sudo apt-get -i cowsay' at your command prompt. Post that you can directly run 
cowsay from the terminal giving it some text to moo about like '
cowsay My name is foo' or pipe fortune quotes like '
fortune | cowsay' at the terminal screen.
Coming to the interesting part: The COW ASCII image has many variation which can be invoked by the -f option to cowsay  (cowsay -f ) . To know what are the options available, just do 'cowsay -l'. This will list all the options availablewhich is pretty interesting. Ok, the options are :
apt beavis.zen bong bud-frogs bunny cheese cower daemon default dragon dragon-and-cow elephant elephant-in-snake eyes flaming-sheep ghostbusters head-in hellokitty kiss kitty koala kosh luke-koala mech-and-cow meow milk moofasa moose mutilated ren satanic sheep skeleton small sodomized sodomized-sheep stegosaurus stimpy supermilker surgery telebears three-eyesturkey turtle tux udder vader vader-koala www
And if you use '
cowthink' instead of '
cowsay', you will get a thinking moooo :-)
Here is an examples when I ran 'fortune | cowsay -f  :
fortune | cowsay -f tux
_______________________________________
/ You'll be called to a post requiring    \
\ ability in handling groups of people. /
 ----------------------------------------------------------------
   \
    \
        .--.
       |o_o |
       |:_  / |
      //       \ \
     (|          | )
    /'\_       _/`\
    \___)=(___/
And this Option is interesting ;-) 'fortune | cowsay -f sodomized'
____________________________________________
/ Increased knowledge will help you now. \
\ Have mate's phone bugged.                     /
 ---------------------------------------------------------------------
      \                _
       \              (_)
        \   ^__^       / \
         \  (oo)\_____/_\ \
            (__)\           ) /
                ||---------w ((
                ||            ||>>
 Pretty interesting, yeah??