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Adding sudo and adding users to sudo

sudo is often a vital tool when working with Linux based systems as it allows you to elevate your privileges to run commands as an administrator when required.

Installing sudo

On some distros like Debian 10 (Buster) sudo may not be installed. This means scripts leveraging sudo from regular users will fail and users must switch user to root before running elevated privilege commands

To install sudo:

  1. Switch to root user

     su -
  2. Install sudo using your appropriate package manager

     apt install sudo # Debian/Ubuntu
     yum install sudo # RHEL7 and earlier
     dnf install sudo # Fedora and RHEL8

Adding user to sudo group

  1. While still logged in as root run

     usermod -aG <username>
  2. Exit root
  3. Logout and back in as user