# aptitude moo昔の人って遊び心満載だったよね。
There are no Easter Eggs in this program.
# aptitude -v moo
There really are no Easter Eggs in this program.
# aptitude -vv moo
Didn't I already tell you that there are no Easter Eggs in this program?
# aptitude -vvv moo
Stop it!
# aptitude -vvvv moo
Okay, okay, if I give you an Easter Egg, will you go away?
# aptitude -vvvvv moo
All right, you win.
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最近こんなの減ってきた気がする。