Howto fortune and cowsay
========================
# use fortune:
fortune

# fortune options:
-s: short
de: German fortunes
de/quiz: German quiz fortunes

# use fortune with cowsay
fortune de -s | cowsay

# edit fortunes:
cd /usr/share/games/fortunes
vi file
sudo strfile fortunes 

# use fortune and cowsay in mutt mail signature:
vi .muttrc:
set signature="fortune de -s|cowsay|"