Maybe you run in the situation that you wanted to change the name of your computer to be more personalized and timely, then you found the process to be a little difficult. The following method will help you quickly changed your computer name.
1. Open terminal window and execute following command and hit enter:
gksu gedit /etc/hostname
2. After typing in the password
hostname file will be opened. Replace the content with timely name as you like.
3. Save the changes in the
4. Again,on the terminal window key in the following command and hit enter:
gksu gedit /etc/hosts
5. Replace your previous hostname with the current hostname.
6. Restart your system and see the changes: