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This article will explain in detail how to change the file folder in CentOS to belong to the user group, the content of the article is of high quality, so the editor will share it with you for reference. I hope you will have a certain understanding of the relevant knowledge after reading this article.

Changing the user group of the file is simple, just use chgrp, which is the abbreviation of change group (change user group). It's easy to remember. Keep in mind, however, that the name of the user group to be changed must exist in / etc/group, or an error will be displayed.

Suppose you log in to FC4 as root, and there is an install.log file in your home directory. How do you change the user group of that file? Suppose you already know that a user group named users already exists in / etc/group, but the user group name testing no longer exists in / etc/group. What happens if you change the user composition to users and testing?

[root@linux] # chgrp [- R] dirname/filename...

Parameters:

-R: make continuous recursive changes, that is, all files and directories in the same subdirectory are updated to this user group. It is often used to change a directory.

Example:

[root@linux ~] # chgrp users install.log

[root@linux ~] # ls-l

-rw-r--r-- 1 root users 68495 Jun 25 08:53 install.log

[root@linux ~] # chgrp testing install.log

Chgrp: invalid group name `testing'

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