How to change group ownership?

To change the group ownership of a file or directory in Linux, you can use the chgrp command or the chown command with the appropriate syntax. Here are the methods:

Using chgrp Command:

1. Basic Syntax:

   chgrp new_group filename

2. Example:
   To change the group ownership of a file named example.txt to a group called developers, you would run:

   chgrp developers example.txt

Using chown Command:

You can also change the group ownership using the chown command by specifying the group after a colon.

1. Basic Syntax:

   chown :new_group filename

2. Example:
   To change the group ownership of example.txt to developers, you would run:

   chown :developers example.txt

Changing Group Ownership Recursively:

If you want to change the group ownership of a directory and all its contents, you can use the -R (recursive) option with either command.

1. Using chgrp:

   chgrp -R new_group directory_name

2. Using chown:

   chown -R :new_group directory_name

Summary:

• Use chgrp new_group filename to change the group ownership of a specific file.
• Use chown :new_group filename to achieve the same with the chown command.
• Use the -R option to change group ownership recursively for directories and their contents.