How to switch to root user mode in linux

After the default installation is completed, we enter the Linux system with the current user permissions, but for many operations we need the root account permissions to operate.

The first command to enter the console is crtl Alt T.

By default, the password of the root user is not known after the installation is completed. The method of using root permissions is as follows:

1. Enter the sudo command

ubnutu64@ubuntu:~$ sudo

like this The current user password can obtain super user privileges. But by default, root permissions expire after 5 minutes.

2. sudo -i

ubnutu64@ubuntu:~$ sudo -i

You can enter the root user by entering the current user password in this way.

3. Use the root user

If you are using the root account for the first time, then we must first reset the root user’s password:

ubnutu64@ubuntu:~$  sudo passwd root

Afterwards, the system will ask you to enter the password of the root account twice. After confirmation, the password will be set. Then you can switch to the root user through the fourth step.

4. Switch to root user

ubnutu64@ubuntu:~$ su
.....输入root密码

5. Exit root user

root@ubuntu:# exit

Related recommendations: " Linux tutorial》

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