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From this article you’ll learn how to create a user in Linux and grant root access to him or how to grant root privileges to already existent user. This can be easily done by changing UID (user id) and GID (group id) in /etc/passwd file.
Only root or users with sudo access can add a user to a group. How to Add an Existing User to a Group. To add an existing user to a secondary group, use the usermod -a -G command followed the name of the group and the user: sudo usermod -a -G groupname username.
We can add regular users to the root Linux group using the usermod command.
Here learn how to grant a normal user with root privileges in Linux. We will see a few methods like add user to root group etc.
Steps to Add Sudo User on Ubuntu. Step 1: Create a New User; Step 2: Add User to Sudoers File or Sudo Group; Step 3: Verify User Belongs to Sudo Group; Step 4: Verify Sudo Access
Log in as the root user and add an existing user accout named ‘sai’ to sudo group: # usermod -aG sudo sai. # id sai. See “ How to create a new sudo user on Ubuntu Linux server ” for more info. RHEL or CentOS or SUSE/OpenSUSE create a new user account with admin (sudo) access.
You need to the useradd command to add new users to existing group (or create a new group and then add user). If group does not exist, create it. The syntax is as follows: # useradd -G {group-name} username. In this example, create a new user called vivek and add it to group called developers.
Add a User to a Group. The most typical use case of the usermod is adding a user to a group. To add an existing user to a secondary group, use the -a -G options followed the group’s name and the username: usermod -a -G GROUP USER.
The sudo command provides system administrators with a way to grant administrator privileges — ordinarily only available to the root user — to normal users. In this tutorial, you’ll learn how to create a new user with sudo access on Ubuntu without having to modify your server’s /etc/sudoers file.
1. Create a New User. You can create a new user from the terminal using the adduser command. Check the below steps to see how it works: First, open your terminal by pressing CTRL+ALT+T. Type the following command: adduser abir. EXPLANATION. adduser: Adds a new user. abir: Creates a new user named abir.