Extra

http://askubuntu.com/questions/470279/internet-slow-on-ubuntu-14-04

Ctrl + alt +T to open terminal https://help.ubuntu.com/community/UsingTheTerminal

Shift +Ins to insert http://askubuntu.com/questions/237942/how-does-copy-paste-work-with-xterm

ls -al, ls -ld .?* show hidden file http://askubuntu.com/questions/468901/how-to-show-only-hidden-files-in-terminal

http://idroot.net/tutorials/how-to-install-automysqlbackup-on-ubuntu/

automatically install eclipse on ubuntu http://askubuntu.com/questions/337281/installing-eclipse-kepler http://ubuntuhandbook.org/index.php/2014/06/install-latest-eclipse-ubuntu-14-04/