How to Check if Ubuntu Is Desktop or Server
“Desktop or server” is not a binary thing – it’s possible to have some desktop components installed on a machine originally installed as a server, etc.
However, there are some tips available to find that out.
Check a package
$ dpkg -l ubuntu-desktop ;# will tell you if the desktop components are installed.
Login to the terminal to see Welcome message or
Welcome to Ubuntu 12.04 LTS (GNU/Linux 3.2.0-29-generic i686) * Documentation: https://help.ubuntu.com/
Welcome to Ubuntu 12.04.1 LTS (GNU/Linux 3.2.0-29-generic x86_64) * Documentation: https://help.ubuntu.com/ System information as of Thu Nov 21 13:23:37 ICT 2013 System load: 0.0 Processes: 185 Usage of /: 70.7% of 60.90GB Users logged in: 1 Memory usage: 57% IP address for eth0: 10.225.50.163 Swap usage: 8% => There are 13 zombie processes. Graph this data and manage this system at https://landscape.canonical.com/ 134 packages can be updated. 66 updates are security updates.