chgrp (change group)

Changes the group owner of a file.

 Format:    chgrp newgroup filename Examples:  chgrp janet file27.txt 

The file file27.txt now has the group owner janet. Only the owner of the file or the super user can change the group. If you attempt to change the group to a group that doesn't exist, an error message displays.

Opt	What It Does	Example
-c	Display info about file changes	chgrp -c janet file2 changed group of 'file2' to janet
-R	Make changes in all subdirectories	ls -R janet file3 changes file3 in any subdirectories, as well