The useradd command, when run without options, creates a user account with default parameters. The default parameters are read from the /etc/login.defs file and include parameters such as valid UID, GID number, default password aging rules, and so on. Values from this file are used while creating a new user only. The syntax of useradd is as follows:
$ useradd <username>
useradd --help will display options that can be used with the useradd command to override the default parameters.
An example of using the useradd command to create a user account is shown in the following screenshot:
Apart from useradd ...
