Configure Node.js on Linux Ubuntu

sudo su
//Check Firewall
ufw status
ufw allow 8080
ufw reload

//Execute node app.js
pm2 start app.js --name "MyNodeApp" -i 0

//Execute npm start
pm2 start npm --name "MyNodeApp" -i 0 -- run start  # Enable load-balancer and cluster features

//Delete the service
pm2 delete MyNodeApp

//See all processes (port - pid)
netstat -panut | grep LISTEN

//Kill a process
kill -9 pid

Install Node.js in Linux

//Install Using a PPA
curl -sL https://deb.nodesource.com/setup_5.x | sudo -E bash -
sudo apt-get install -y nodejs

//Install Git
apt-get install git

Linux commands

clear                                     //Clear console
uname -i                                  //OS Architecture

mkdir mydir                               //Create folder
rm -r mydir                               //Remove folder
mv oldname ./newname                      //Rename folder
cp -r myfolder/* otherfolder/             //Copy folder content
rm -rf *                                  //Remove all folder content

sudo su                                   //Enable root user
chmod -R 777 /www/myApp                   //Enable all permissions

PostgreSQL

sudo apt-get install postgresql-common
sudo apt-get install postgresql-9.5 libpq-dev

sudo -u postgres dropdb 'local'            //Delete database
sudo -u postgres psql                      //Access to Shell commands

\password username                         //Change password
CREATE USER tom WITH PASSWORD 'myPassword';//Create user

\l                                         //list all databases
\c "database"                              //use database
\q                                         //exit
\dt                                        //show tables