To add a user in CentOS, first use the adduser command: sudo adduser username to create the user with a home directory and default shell; second, set a password with sudo passwd username, ensuring the account is not locked; third, optionally grant sudo privileges by running sudo usermod -aG wheel username, allowing the user to execute administrative commands, and verify the setup using id username or ls /home to confirm the user and home directory exist.
Adding a new user in CentOS is a straightforward task, commonly done via the command line. Here’s how to do it properly, whether you're using CentOS 7, 8, or Stream.
1. Use the adduser Command
The adduser command is a symbolic link to useradd on most CentOS systems and provides a user-friendly way to create users.
sudo adduser username
Replace username with the actual name you want for the new user (e.g., john).
This command creates:
- A user account
- A home directory (
/home/username) - Assigns a default shell (usually
/bin/bash)
2. Set a Password for the User
After creating the user, you must assign a password:
sudo passwd username
You’ll be prompted to enter and confirm the password. Make sure it's strong.
?? If no password is set, the account remains locked and cannot log in via password authentication.
3. (Optional) Grant Sudo Privileges
If the user needs administrative rights, add them to the wheel group (CentOS’s default sudo group):
sudo usermod -aG wheel username
Now the user can run commands with sudo. Test it by switching to the user:
su - username
Then try a command like:
sudo whoami
You should be prompted for the user’s password and see root as output.
4. (Optional) Customize User Settings
You can customize the account during creation with extra options:
sudo adduser -c "Full Name" -s /bin/bash -m username
-c: Adds a comment (like full name)-s: Specifies the login shell-m: Ensures the home directory is created (useful if usinguseradddirectly)
Note:
adduserusually does this by default. Useuseraddonly if you need fine control.
5. Verify the User Was Added
Check that the user exists:
id username
Or list home directories:
ls /home
You should see the new user’s home folder.
That’s it. You’ve successfully added a user in CentOS. Just remember to set a password and assign proper groups based on what the user needs. Basically, three steps: adduser, passwd, and optionally add to wheel.
The above is the detailed content of How to add a new user in CentOS. For more information, please follow other related articles on the PHP Chinese website!
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