1. Use the sudo command
| The command | instructions |
|---|---|
| sudo -s | Switch to user root and obtain administrator rights |
| sudo | You can add sudo before a command to obtain administrator permission |
Sudo-s:
Sudo command
Description:
- Sudo is recommended if you only need administrator privileges for a specific operation, that is, temporarily use the manager privileges.
- If you need to use the administrator permission sudo -s for a large number of operations, exercise caution.
2. Use the whoami command
| The command | instructions |
|---|---|
| whoami | Viewing the Current User |
Effect of the whoami command:
3. Use the exit command
| The command | instructions |
|---|---|
| exit | Logging Out a User |
Effect of the exit command:
Description:
- If you are the login user after switching, you will return to the previous login account when you quit.
- If it is a terminal interface, exit the current terminal.
4. Use the who command
| The command | instructions |
|---|---|
| who | View all login users |
Effect of who command:
5. Use the passwd command
| The command | instructions |
|---|---|
| passwd | Change a user password. If no user is specified, the password of the current login user is changed by default |
The following is the effect of the passwd command:
6. Use of which command
| The command | instructions |
|---|---|
| which | Viewing command Locations |
Which command:
7. Use shutdown and restart commands
| The command | instructions |
|---|---|
| Shutdown – h now | Immediately shut down |
| reboot | restart |
Nodule 8.
- Sudo is a temporary access to the administrator
- The sudo -s command is used to switch to the administrator user and has the administrator rights. Exercise caution when performing this operation.
- Exit: Exits the current user
- Passwd Changes the current user password by default
note
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