#!/bin/sh echo "Makes the X Stepper dance back & forth ad infinitum" export pokeDev=/dev/ttyUSB0 # Add your "poke" command here. export poke="./poke -d 2 -t $pokeDev -v " # Ensure port is raw data friendly. stty -F $pokeDev -echo -cooked echo 3 0 0 | $poke while true; do echo 5 200 30 1 | $poke sleep 2 echo 5 200 0 0 | $poke sleep 2 done