sudo

Executes a single command as the superuser or another user. More information: https://www.sudo.ws/sudo.html.

• Run a command as the superuser:

sudo less /var/log/syslog

• Edit a file as the superuser with your default editor:

sudo --edit /etc/fstab

• Run a command as another user and/or group:

sudo --user=user --group=group id -a

• Repeat the last command prefixed with sudo (only in Bash, Zsh, etc.):

sudo !!

• Launch the default shell with superuser privileges and run login-specific files (.profile, .bash_profile, etc.):

sudo --login

• Launch the default shell with superuser privileges without changing the environment:

sudo --shell

• Launch the default shell as the specified user, loading the user's environment and reading login-specific files (.profile, .bash_profile, etc.):

sudo --login --user=user

• List the allowed (and forbidden) commands for the invoking user:

sudo --list