Linux under the Group Management Command detailed

Linux under the Group Management Command detailed

1. Groupadd command, add Group command

   Format: groupadd [options] Group name

   Option:-G: Specify GID

-R: Add System Group

Example: groupadd-g Willow Create Willow Group and GID is 1000

2.groupmod command, modify Group command

Format: groupmod [options] Group name

Option:-G: Modify GID

-N: Modify Group name

Example: groupmod-g 1100 Willow Modify Willow Group GID to 1100

Groupmod-n Willow.xia Willow Modify the willow group named Willow.xia

3.groupdel command, delete Group command

Format: Groupdel Group name

4.GPASSWD command, modify Group Password command

Format: gpasswd [options] Group name

Option:-A adds user to group

-D Delete a user in a group

-R Delete Group password

-M allows multiple users to join the group, separated by commas, noting that users in the original group will be removed

Example: gpasswd-m user1,user2,user3 Hello add User1,user2,user3 to the Hell Group

5.NEWGRP command, toggle staging Group

Note Switch groups, you must enter a group password,

Exit using the Exit command

6.chage, modify user account attribute time command

-D: Most recent modification time

-M: Minimum period of use

-M: Maximum lifespan

-E: Expiration time

-I: Inactive time

-W: Warning time

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Linux under the Group Management Command detailed