We may also need to add user to the multiple groups by providing multiple group ID’s in a single command. We have just provided only single group ID. In previous example we have added new user with the specified group ID. This command will create test user with a home directory like /home/mytest For example if the username is test the home directory of the user will be /home/test $ useradd -d /home/mytest test5 $ cat /etc/passwd | cut -d : -f 1 | grep testĬreate A User With Different Home Directoryīy default useradd command will create a home directory in /home path with the same name as username. We can list newly created user with the following command. This user will be added to the /etc/passwd file with the default shell and other related parameters. $ cat /etc/passwd | cut -d : -f 1 List current Users Create New User $ useradd -h useradd command help List Current Users in A Linux Systemīefore adding a Linux user we will list existing users to provide non colliding username. To get quick help about useradd command issue following command. Knowing its parameters and options are very crucial for daily operations. Useradd command is very useful command for system administrators. In this tutorial we will look how to add new user to the Linux. User groups are stored in plain text database /etc/group . There is also user groups to manage permission better. As old times user passwords also stored in this file but on modern time for security reasons user passwords are hold in /etc/shadow . Linux users are stored in plain test database at /etc/passwd.

In Linux environment to create a file, start a service, open a network port we need a user with required privileges. Linux all operations are done with users.

How to add a user account command