Any usable command

Linux

Search package on current repository eg: sudo apt-cache search opengeo
Login as another user sudo su postges
(Setup Postgres user for the first time)[http://suite.opengeo.org/opengeo-docs/dataadmin/pgGettingStarted/firstconnect.html#dataadmin-pggettingstarted-firstconnect]
Update GRUB
Run file backgorund nohup sudo root-0.1-SNAPSHOT/bin/root -Dhttp.port=8080 &
Lists listened port sudo netstat -tulpn
Kill listened port fuser -k 8080/tcp
Update GRUB File sudo update-grub
Open port sudo ufw allow 8081/tcp
Close port sudo ufw disallow 8081/tcp
Set Network Interface on Ubuntu 14.04

PHP

Installing module and enable it manually eg: sudo apt-get install php5-mcrypt && sudo php5enmod mcrypt