Linux Modify user name and password

Change root password: sudo passwd root

Modify host Name: sudo vi/etc/hostname to change the name to his name.

sudo vi/etc/hosts changed the name to his name.

Modify user name: sudo vi/etc/passwd find the original user name, change it to its own user name, but/home/"original user name" can not be changed, if the change restarts, will not login system.

sudo vi/etc/shadow find the original user name and change to its username

When the above steps are complete, sudo reboot restarts

Reboot, enter the system, found in the home directory user directory or the original user name, but with the command ls-al can see the user directory belongs to the user has changed to your own users, under the "MV User directory name of their own user directory name" will be changed under the directory name. For example, the original directory named XXXX is now changed to user yyyy. With command MV XXXX YYYY can be.

Linux Modify user name and password