$ 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.
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