How to switch from ordinary user to root user in centos7

The specific method is as follows:

You are currently logged in as an ordinary user. If you want to switch to the root user, you need to enter the command

su

and then enter the root password. After pressing Enter, you will enter the root user.

If we want to switch from the root user to an ordinary user, we only need to enter the command

su 用户名

to switch to an ordinary user.

Recommended tutorial: centos tutorial

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