ubuntu-commands.md

Signing as root

sudo -s

• sudo apt update: Fetches the list of available updates
• sudo apt upgrade: Strictly upgrades the current packages
• sudo apt full-upgrade: Installs updates (add or remove packages), equivalent of dist-upgrade

Adding a Non root user sudo useradd -u 1000 -g 1000 username

sudo passwd username

Check user ID for a Username id -u username

Deleting user

sudo userdel username

Deleting user with it's home direcotry

sudo userdel -r username

Check user permissions for a file/directory

ls -l filename You can also use the namei -m command followed by the file or directory path to output all of the permissions in the path in a vertical list

namei -m /path/to/file

List all users on ubuntu

compgen -u

Change folder ownership to a certain user

sudo chown -R username:username /path/to/folder