Sudo

Sudo configuration, permissions management, and best practices.

Sep 20, 2026 • 13 min read • series

Sudo Command in Linux: Run Commands as Root

The sudo command runs programs as root or another user. This guide covers sudoers setup, root shells, sudoedit, credential caching, and common sudo options.

Sep 11, 2026 • 6 min read

How to Create a sudo User on Debian

Create a sudo user on Debian 11, 12, and 13 by adding a new account and granting sudo privileges through the sudo group or the sudoers file.

Sep 11, 2026 • 6 min read

How To Create a Sudo User on Ubuntu

Create a sudo user with a home directory on Ubuntu 22.04, 24.04, or 26.04 using adduser and usermod, then verify the account has sudo access.

Sep 10, 2026 • 5 min read • series

How to Run Sudo Command Without Password

Configure the sudoers file or a drop-in file in /etc/sudoers.d to let a user or group run sudo commands without a password prompt.

Sep 10, 2026 • 7 min read

How to Add User to Sudoers in Debian

Grant sudo privileges in Debian by adding a user to the sudo group or configuring a custom sudoers rule with visudo. Covers Debian 12 and 13.

Sep 10, 2026 • 10 min read

How to Add a User to Sudoers in Ubuntu

Grant sudo privileges in Ubuntu by adding a user to the sudo group or editing the sudoers file. Step-by-step examples and common errors.

Aug 11, 2026 • 9 min read • series

su Command in Linux: How to Switch Users

Use the su command to switch users, open a root login shell, and run commands as another account. Includes options, sudo su, troubleshooting, and examples.

Switching users with the su command in Linux

Jun 4, 2026 • 6 min read

Fix "sudo: command not found" on Linux

How to fix the 'sudo: command not found' error on Linux by installing the sudo package, adding your user to the right group, and recovering from a broken PATH.

Fixing the sudo command not found error on Linux

Nov 4, 2019 • 4 min read

How to Add User to Sudoers in CentOS

In CentOS you have two options to grant sudo access to a user. The first one is to add the user to the sudoers file. The second option is to add the user to the wheel group.

Feb 19, 2019 • 2 min read

How To Create a Sudo User on CentOS

The sudo command is designed to allow users to run programs with the security privileges of another user, by default the root user. In this guide we will show you how to create a new user with sudo privileges on CentOS.