Managing users is an essential skill for anyone working with Linux systems, whether you're a beginner or an experienced sysadmin. The useradd command is one of the most basic yet powerful tools for creating new users quickly and efficiently. Here are three useradd commands that every Linux user should know.

First, the basic command to create a new user is simply useradd username. This will create a user with default settings. If you want to learn more about how to properly create users and manage their home directories, you can check out this detailed guide on creating users with useradd at IDOLinux.

Second, if you want to create a user and immediately set a home directory and shell, you can use useradd -m -s /bin/bash username. The -m flag ensures a home directory is created, and -s lets you specify the default shell for the new user.

Finally, for adding a user to a specific group at creation, you can use useradd -G groupname username. This is very useful for setting permissions right from the start, especially when working with different teams or managing access to certain resources.

If you're interested in learning more tips and tutorials about Linux, be sure to explore more articles on IDOLinux.