Don't expect too much - this is a simple Postscript implementation of a few LOGO commands.
You can move the turtle forward, turn it right, left, send it home, lift it's pen with penup, put the pen back on paper with pendown and you can repeat all commands.
A short example:
repeat 9 [ right 30 forward 30 left 40 forward 20 left 130 forward 30 left 40 forward 20 left 20 forward 10 left 120 forward 10 ] ;
That's all, folks.
Download simplelogo.ps. The file displays additional usage information after startup.