Possible Duplicate:
Easter eggs in Ubuntu

I did "apt-get --help" and at the end of the output it said "This APT has Super Cow Powers." I have never seen this message before. Can anyone tell me what it means? Thanks ahead of time for your input.

  • 1
    And my aptitude does not have super cow powers
    – daithib8
    Mar 2, 2012 at 16:10
  • 3
    Actually aptitude has super duper cow farm powers. Do this aptitude -v moo. Afterwards starting adding V's like aptitude -vvv moo and keep doing this until "something" happens. Mar 2, 2012 at 16:21
  • 3
    @user18432 - please accept answers to questions you ask. In several of your past questions, you in a comment say thanks. Clicking the little check button is the best way to thank people from contributing to your questions. Mar 2, 2012 at 16:27
  • @jokerdino, jrg You should probably add this as an answer to the "duplicate" question now. There's currently no mention on that page of what was asked about here.
    – ændrük
    Mar 2, 2012 at 19:43

1 Answer 1


It appears to be a joke.

According to Wikipedia's article on aptitude, apt-get contains an easter egg resembling cowsay that can be found by issuing the moo command:

$ apt-get moo
  / |    ||
 *  /\---/\
    ~~   ~~
...."Have you mooed today?"...

The line in its help output,

$ apt-get --help | grep 'Super Cow Powers'
                       This APT has Super Cow Powers.

is presumably a reference to this easter egg, or perhaps was added later to parallel aptitude's claim that it "does not have Super Cow Powers".

  • OK, Thanks for the information. I understand now.
    – user18432
    Mar 2, 2012 at 16:28
  • @user18432 Since this answers your question, please accept this answer by clicking the check mark button to the left of the answer. Mar 2, 2012 at 18:40
  • 1
    Interestingly, aptitude moo spits out: There are no Easter Eggs in this program.
    – Ads20000
    Apr 22, 2014 at 13:11

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