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