Summary of linux Method for Adding root Permission to User

1. To add a user, first add an ordinary user with the adduser command. The command is as follows:

#adduser tommy
//Add 1 user named tommy
# passwd tommy//Change password
Changing password for user tommy.
New UNIX password://Enter the new password here
Retype new UNIX password://Enter new password again
passwd: all authentication tokens updated successfully.

2. Give root permission

Method 1: Modify the/etc/sudoers file, find the following line, and remove the previous comment (#)

## Allows people in group wheel to run all commands
%wheel ALL=(ALL) ALL

Then modify the user to belong to the root group (wheel) with the following command:

#usermod -g root tommy

After modification, you can now log in with tommy account, and then use the command su-to obtain root permission to operate.

Method 2: Modify the/etc/sudoers file, find the following 1 line, and add 1 line under root as follows:

## Allow root to run any commands anywhere
root ALL=(ALL) ALL
tommy ALL=(ALL) ALL

After modification, you can now log in with tommy account, and then use the command su-to obtain root permission to operate.

Method 3: Modify the/etc/passwd file, find the following line, and modify user ID to 0, as follows:

tommy:x:500:500:tommy:/home/tommy:/bin/bash

It is amended as follows

tommy:x:0:500:tommy:/home/tommy:/bin/bash

Save, after logging in with tommy account, you can directly obtain the authority of root account.

Friendly reminder: Although method 3 looks simple and convenient, it is generally not recommended to use, and method 2 is recommended.

linux How to Add root Permissions to User

## Allow root to run any commands anywhere

root ALL=(ALL) ALL

tommy ALL=(ALL) ALL

After modification, you can now log in with tommy account.

Then use the command su to obtain root permission to operate.

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