Joseph Swanson from swantron likes working with the command line. He also likes working with the Arduino. So he came up with this simple project which takes the results of his command line entries and directs them over the Linux box’s USB output to the Arduino. The Arduino then displays the data on an attached parallel LCD. The sketch code is included for this easily implemented and useful technique.
(The wonky character wrapping he notes is probably due to the way the HD44780 based 4×20 LCDs pair the display lines, which should be correctable with a code mod.)