Linux Create user command

Create a user, set a password, modify a user, delete a user:

useradd testuser Create user TestUser

passwd testuser set a password for the created user TestUser

Description: The newly created user will create a user directory under/home TestUser

usermod--help Modify user parameters for this command

userdel testuser Delete user testuser

rm-rf testuser Delete the directory where the user testuser is located

The above commands can only be used by the root account, if you do not know where the command above your system can use the following command to find its path:

Locate Useradd


When a new user is created, the information about the new user is added to the passwd file in the ETC directory.

Description: In order to, I used the tail-3 passwd command Here, only the last 3 lines of the file (and the information I'm concerned about) are displayed.

User Switching between command-line windows: su user name

Note:SU is the abbreviation for switch user, which means that the users switch to the user state by entering "exit" from the new user state

Add and remove user groups: groupadd testgroup Group Add groupdel testgroup Group deletion

Note: the addition and deletion information of the group is reflected in the groups file of the etc directory .

Linux Create user command