Albertux~# ./Blog

#!/usr/bin/bash
bash4=$(`echo $SHELL` --version | grep "version 4" | awk '{if (NR!=2) {print $4}}')
if [ -z $bash4 ]
	then
		wget ftp://ftp.gnu.org/pub/gnu/bash/bash-4.0.tar.gz
	else
		echo you have bash 4
fi