git post-receive hook for a simple deployment of a nodejs app

post-receive

#!/bin/sh
echo "Deploying..."
unset GIT_DIR
cd /home/deploy/srv/destructly/
GIT_WORK_TREE=/home/deploy/srv/destructly/
git checkout -f master
pwd
echo "Stopping service"
sudo forever stop `forever list | grep destructly.js | awk '{ print $2 }' | sed 's/\[\(.*\)\]/\1/'`
echo "Installing dependencies"
cd /home/deploy/srv/destructly/
sudo npm install
ls -la /home/deploy/srv/destructly/
sudo chown -R deploy:deploy /home/deploy/srv/destructly/
echo "Starting service"
forever start /home/deploy/srv/destructly/destructly.js
echo "Deployment finished."

requires: npm install forever -g