You can add a user in the sudoers file by using visudo command. The user who is listed in the sudoers file has sudo privileges and can run sudo command. The user and group sudo privileges are defined in the /etc/sudoers file. sudo command to add users to the sudoers file On RHEL, CentOS, and Fedora, you can use: $ sudo usermod -aG wheel userĦ. You can add a user to the sudo group with the following command on Ubuntu and Debian. When you add a user to the sudo group, that user will be able to run all commands with sudo. sudo command to add a user to the sudo group $ sudo -l -U userĪs you can see, the user deepak does not have sudo privileges but the root user can run all the commands.ĥ. You can use -U or -other-user option with -l option to display the user privileges of the given user. Display privileges for another user with sudo command

It is mostly used to run the command which needs root permission.ĪLSO READ: 30+ firewalld command examples 4. Use sudo to run command as a root userīy default, when no user is specified, the sudo runs a command as a root user.

-u: run the command as a different userĭifferent examples to use sudo command 1.

-l: list user's privileges or check a specific command.

-V: display version information of sudo.

Some of the options available in sudo command are: The general syntax for sudo command is as follows: $ sudo command The default security policy is sudoers configured in the file /etc/sudoers. The security policy determines whether or not a user has sudo privileges. To install sudo on Ubuntu and Debian # apt install sudo To install sudo on CentOS, Fedora, and RHEL # yum install sudo However, if you do not find the sudo package on the system, you can install it from the default package management repositories. In most of the Linux distributions, sudo is pre-installed on the system. ALSO READ: 25+ most used find commands in Linux

Sudo yum