simple TYPO3 update script

updatet3.sh

#!/bin/sh
if [ ! -d "typo3_src-$*" ]; then
	echo "download typo3 source"
	wget http://get.typo3.org/$*
	echo "unzip typo3 source"
	tar xfz typo3_src-$*.tar.gz
	rm -rf typo3_src-$*.tar.gz
fi
echo "unlink previous typo3 source"
unlink typo3_src
echo "creating symlink"
ln -s typo3_src-$* typo3_src
echo "all done and switched to version $*!"

how-to:
./updatet3.sh 7.0.2