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This article mainly explains "how linux deletes users and groups". The content in the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "how to delete users and groups in linux".

In linux, you can use the userdel command to delete the user, clear the data related to the specified delete user, and use the syntax "userdel-r user name"; you can use the groupdel command to delete the user group, using the syntax "groupdel group name".

The operating environment of this tutorial: linux5.9.8 system, Dell G3 computer.

Relationship between Linux users and groups

The corresponding relationships between users and user groups are as follows:

One-to-one: a user can exist in a group and is the only member of the group

One-to-many: a user can exist in multiple user groups, and this user has common permissions for these groups

Many-to-one: multiple users can exist in a group with the same permissions as the group

Many-to-many: multiple users can exist in multiple groups, that is, an extension of the above three relationships.

The relationship between users and groups can be represented by the following figure:

How does linux delete users and groups

Linux Delete user

In linux, you can use the userdel command to delete a user and delete data information related to a specified user.

The syntax of the userdel command is simple, and the basic format is as follows:

Userdel-r user name

The-r option means that the user's home directory is deleted while the user is deleted.

Note that if you delete the user's home directory without deleting the user's home directory, the home directory will become a directory without owners and groups, that is, junk files.

Example: delete lamp user

Userdel-r lamp

Linux deletes a user group

In linux, you can use the groupdel command to delete a user group (group), which is basically in the following format:

Groupdel group name

Example: delete group users

Groupdel users thank you for reading, the above is the content of "how to delete users and groups in linux". After the study of this article, I believe you have a deeper understanding of how to delete users and groups in linux, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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