Linux--ubuntu the root user and the normal user switch

1. When performing certain operations that require higher permissions, you can use (sudo + raw commands) for higher permission operations, but you will need to enter a password each time you use it for the first time, which is 2 more hassle. Change the root password to avoid 1. Problems in the.

• Use sudo passwd in terminal to change password

　

• Use the (SU root) command to switch to the root user. (The first time the password is not changed, the use of the SU root command will prompt authentication Failed, this time need to perform the above to modify the root user password operation)

• Exit root User

The root password is not required every time the command is executed, even with the sudo + original command.

Linux--ubuntu the root user and the normal user switch