There’s also a bit of fun to be had with the apt-get and aptitude commands. Open a Terminal window and
enter all the following commands, one at a time, viewing the response you
get to each:
apt-get moo aptitude help aptitude moo aptitude -v moo aptitude -vv moo aptitude -vvv moo aptitude -vvvv moo aptitude -vvvvv moo aptitude -vvvvvv moo
I won’t reveal what happens here—you can find out for yourself!