A huge Unix poster (Din A0 or Din A1) showing the most important commands with examples. The special aspect about this poster is that it was programmed with the Haskell diagrams library instead of using a tool like Inkscape.
Entering
ghc --make poster.hs
or go to the folder and
cabal install
builds an executable, and entering:
./poster -o unixposter.pdf -w 1685
produces unixposter.pdf