Bash Script - GPIO Configuration

Raspberry Pi/gpio_config.sh

@@ -0,0 +1,24 @@
+#!/bin/sh
+
+# Define some variables
+
+ERROR_MESSAGE="use [script_name] [Arg1: PIN number] [Arg2: in or out]"
+
+case $# in 
+
+	1) 
+		echo $1 > /sys/class/gpio/unexport
+		echo "GPIO pin unexported"
+		;;
+
+	2)  	
+		echo $1 > /sys/class/gpio/export
+		sleep 1
+		echo $2 > /sys/class/gpio/gpio$1/direction
+		echo "GPIO pin is set"
+		;;
+
+	*) 	
+		echo $ERROR_MESSAGE
+		;;
+esac