Linux Learning Notes---User management---account management

Root management

(1) New User: Useradd

-U	Specify UID
-G	Specify GID
-G	Add to a group as a member
-M	Do not create a master user directory
-M	Create a Master User directory
-C	User Information Description column
-D	Specify a directory as the primary user directory
-R	Create a System account
-S	Specify Shell
-E	Account Expiration Date
-F	0 means the password is immediately invalid,-1 means never expires

(2) Default value reference file for Useradd:/etc/default/useradd

(3) Uid/gid and password parameter reference file:/etc/login.defs

(3) Change Password: passwd

(4) Password aging management:chage(change age)

(5) Modify the relevant data of the account:usermod(user modify)

(6) Delete users:userdel(user delete)

It is mainly used with-R and can be deleted together with the home folder.

General user Management

(1) View user information:finger(fingerprint)

To query your own information:

Query the relevant user information:

Establish plan

(2) Modify the value of finger:chfn(change finger)

(3) Modify Shell:chsh(change shell)

(4) Query Uid/gid:id

Query yourself:

Find someone:

User Group Management

　　(1) New user group: Groupadd

(2) Modify user group: Groupmod

(3) Delete user group: Groupdel

(4) Modify user group password/designated team leader: GPASSWD

Linux Learning Notes---User management---account management