| Command | Description |
|---|---|
sudo |
Execute command as a different user. |
su |
The su utility requests appropriate user credentials via PAM and switches to that user ID (the default user is the superuser). A shell is then executed. |
useradd |
Creates a new user or update default new user information. |
userdel |
Deletes a user account and related files. |
usermod |
Modifies a user account. |
addgroup |
Adds a group to the system. |
delgroup |
Removes a group from the system. |
passwd |
Changes user password. |