linux enters root privileges

The ways to enter root permissions in Linux include using the su command, using the sudo command, using the sudo command to execute a single command, and using the pkexec command. Detailed introduction: 1. Use the su command. The su command is a common method to switch to the identity of other users, including the root user. Enter the "su -" command in the terminal, and then enter the root user's password to enter root. Permissions; 2. Use the sudo command. The sudo command is a safer method and can temporarily obtain root and so on.

#In order to ensure the security of the system, the Linux system restricts user access to root privileges by default. However, in some cases, we may need to enter root privileges to perform some operations that require privileges. Below I will introduce in detail several common methods to enter root privileges.

1. Use the su command:

The su (switch user) command is a common method to switch to the identity of other users, including the root user. Enter the following command in the terminal:

   su -

Then enter the password of the root user to enter root permissions. It should be noted that the su command will switch to the root user by default. If you want to switch to another user, you can add the user name after the command, for example:

   su - username

where username is the user of the user you want to switch to. name.

2. Use the sudo command:

The sudo (Super User Do) command is a safer method that can temporarily obtain root privileges to perform privileged operations. Enter the following command in the terminal:

   sudo -i

Then enter the password of the current user to enter root permissions. Using the sudo command can avoid logging in directly with the root account and improve system security.

3. Use the sudo command to execute a single command:

If you only need to execute a command that requires root privileges, you can use the sudo command to execute the command without switching to the root user. Enter the following command in the terminal:

   sudo <command>

Where, is the command that needs to be executed, for example:

   sudo apt-get update

4. Use the pkexec command:

The pkexec command is A method for executing graphical interface programs. This command can be used in the terminal to execute graphical interface programs that require root privileges. Enter the following command in the terminal:

   pkexec <command>

Where, is the command of the graphical interface program that needs to be executed, for example:

   pkexec gedit

This will open the gedit text editor with root permissions.

It should be noted that for the sake of system security, we should try to avoid using root privileges in daily operations, but use ordinary users to operate. Only switch to the root user when you need to perform operations such as system configuration and software installation that require root privileges.

In addition, in order to protect the security of the system, we can also limit which users can use sudo commands and which commands can be executed by setting the sudo configuration file to reduce potential security risks.

In short, entering root privileges is an important and sensitive operation. We should use it with caution and follow the system's security regulations.

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