What should I do if the root permissions of centos7 are not enough?

centos 7 Solution to insufficient root permissions:

1. Add an ordinary user, the command line steps are as follows:

(1)useradd wy99--Add a user named wy99

(2)passwd wy99- -Change the password for user wy99

After pressing Enter, the following information appears on the command line (just fill in the password in order):

(3) Changing password for user wy99.

New UNIX password--Enter the new password here (when entering the password, the default is to hide the input state)

Retype new UNIX password- -Enter the new password again (if the passwords entered twice are consistent, the change can be successful)

passwd: all authentication tokens updated successfully

su wy99--Switch to wy99 User

In this way, the creation process of an ordinary user is over.

2. Ordinary users are upgraded to administrator users. The command line steps are as follows:

At this point, we will find that ordinary users are often not satisfied with their own needs. For example, the reading and writing of certain files and file directories will be restricted, so we also need to give wy99 users a way to upgrade VIP users, then look at the following code:

Method 1:

vi /etc/sudoers  --  修改/etc/sudoers文件，找到下面一行，把前面的注释（#）去掉
## Allows people in group wheel to run all commands
#%wheel              ALL=(ALL)               ALL (此处标红的井号去掉即可)

Method 2: After

vi /etc/sudoers  --  修改/etc/sudoers文件，找到下面一行，在下面加入一行代码
## Allow root to run any commands anywhere
root              ALL=(ALL)               ALL
wy99            ALL=(ALL)               ALL(加入此行代码)

is modified, use the command su wy99 to switch users.

The method to modify user read and write permissions is as follows:

-- Modify a single file (folder)

chown或chmod    “权限”或“名：组”    文件（夹）名称

-- Modify all files in the folder and subfolders

chown或chmod  -R   “权限”或“名：组”    文件夹名称

Recommended tutorial: "centos tutorial"

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