Adding a new user in Ubuntu is a straightforward process that can be done using the command line. This guide will walk you through the steps to add a user in Ubuntu, along with some useful commands and tips.

Step 1: Open the Terminal

To begin, open the Terminal by pressing Ctrl + Alt + T on your keyboard. The Terminal is the command line interface in Ubuntu where you can execute various commands.

Step 2: Add a User

Now, let’s add a new user to the system. Use the following command:

sudo adduser username

Replace “username” with the desired username for the new user. You will be prompted to enter a password and additional information like Full Name, Room Number, Work Phone, etc. You can leave these fields blank by pressing Enter if you don’t want to provide any information.

Step 3: Grant Administrative Privileges (Optional)

If you want to grant administrative privileges to the new user, you can add them to the “sudo” group. Use the following command:

sudo usermod -aG sudo username

Replace “username” with the username of the user you want to grant administrative privileges to. This will allow the user to execute commands with root privileges.

Step 4: Verify User Creation

To verify that the user has been successfully created, you can use the following command to list all users on the system:

cat /etc/passwd

This will display a list of all users, including the newly created user.

Additional Commands and Tips

Here are some additional commands and tips related to adding users in Ubuntu:

• sudo deluser username: This command can be used to delete a user from the system. Replace “username” with the username of the user you want to delete.
• sudo passwd username: Use this command to change the password for a user. Replace “username” with the username of the user whose password you want to change.
• sudo chage -E yyyy-mm-dd username: This command can be used to set an expiration date for a user account. Replace “yyyy-mm-dd” with the desired expiration date and “username” with the username of the user whose account you want to set an expiration date for.
• sudo usermod -l new_username old_username: Use this command to change the username of an existing user. Replace “new_username” with the desired new username and “old_username” with the current username of the user.

Useful Data Table

Command	Description
sudo adduser username	Adds a new user to the system
sudo usermod -aG sudo username	Adds the user to the sudo group to grant administrative privileges
sudo deluser username	Deletes a user from the system
sudo passwd username	Changes the password for a user
sudo chage -E yyyy-mm-dd username	Sets an expiration date for a user account
sudo usermod -l new_username old_username	Changes the username of an existing user

Adding a user in Ubuntu is a fundamental task that allows you to create separate accounts for different users and manage their privileges. By following the steps outlined in this guide, you can easily add a new user to your Ubuntu system.

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