Script to check for button press

gistfile1.txt

#!/bin/bash
#################################################
# Switch Test #1
#
# Sets up the GPIO 4 port to check for a button
# press.  Loops until the button is pressed
# 
# Ref: 
# http://rpi.tnet.com/project/hardware/project001
#
#################################################

# Setup the port First

/usr/local/bin/gpio -g mode 4 in
/usr/local/bin/gpio -g mode 4 up

# Loop Looking for a button press

while [ 1 ]
do
    value=`/usr/local/bin/gpio -g read 4`
    if [ $value -eq 0 ]
    then
       break
    fi
    sleep 1
done

echo "We left the loop"