Pull from github

pull() {
sudo rm -rf /home/git-repo/BigDinosaur
START_HERE="/home/git-repo";
cd $START_HERE;

echo -e "\nPulling down latest for $START_HERE\n";
sudo git clone https://BigDinosaur@github.com/BigDinosaur/BigDinosaur.git;
       cd $START_HERE;
}

case $1 in

pull)
    pull
;;


save it in file bddeploy.sh

To execute issue following command
sh bddeploy.sh pull