Easy automatic deploy bash for dummies

deploy_git.sh

#!/bin/sh
projectname=$1;

#Para usar ejecutar sh deploy_git.sh [Nombre proyecto] [Scripts a ejecutar luego de deploy]

cd /var/www;
mkdir $projectname;
cd /var;
mkdir repo;
cd repo;
mkdir $projectname;
cd $projectname;
mkdir site.git;
cd site.git;
git init --bare;
cd hooks;
sudo touch post-receive;

myip="$(dig +short myip.opendns.com @resolver1.opendns.com)";

echo "
#!/bin/sh
cd /var/www/$projectname
git --work-tree=/var/www/$projectname --git-dir=/var/repo/$projectname/site.git checkout -f
${2}
" > post-receive;
sudo chmod +x post-receive;
green=`tput setaf 1`
reset=`tput sgr0`
echo "${green}---------LISTO PERRO YA TIENES TU REPO LEVANTADO-----${reset}

git remote add testing root@${myip}:/var/repo/$projectname/site.git

";