chgrp (change group) in Linux CLI - Cheat Sheet & Quick Revision

Recall & Review

beginner

What does the chgrp command do in Linux?

The chgrp command changes the group ownership of a file or directory to a specified group.

beginner

How do you change the group of a file named report.txt to staff?

Use the command: chgrp staff report.txt to change the group ownership of report.txt to staff.

intermediate

Can chgrp change the group of multiple files at once? How?

Yes. You can list multiple files after the group name, like chgrp staff file1.txt file2.txt, to change their group ownership all at once.

intermediate

What option do you use with chgrp to change groups recursively for directories and their contents?

Use the -R option: chgrp -R staff /path/to/directory changes the group for the directory and all files inside it.

beginner

Who can change the group ownership of a file using chgrp?

Only the file owner or the superuser (root) can change the group ownership of a file using chgrp.

What does the command chgrp developers project.txt do?

A Creates a new group called developers

B Changes the owner of project.txt to developers

C Deletes the project.txt file

D Changes the group of project.txt to developers

The chgrp command changes the group ownership of the file to the specified group.

Which option allows chgrp to change groups for all files inside a directory?

A -f

B -a

C -R

D -v

The -R option makes chgrp work recursively on directories and their contents.

Who can use chgrp to change a file's group?

A Only the file owner or root

B Only users in the new group

C Only root

D Any user

Only the file owner or the superuser (root) can change the group ownership.

What happens if you run chgrp staff file1.txt file2.txt?

A Changes group of file1.txt only

B Changes group of both files to staff

C Changes group of file2.txt only

D Creates two new files

Listing multiple files changes the group for all listed files.

If you want to see what chgrp is doing, which option should you add?

A -v

B -q

C -s

D -n

The -v (verbose) option shows details of the changes made.

Explain how to change the group ownership of a file and what permissions are needed.

Think about who owns the file and the command format.

Describe how to change the group ownership of all files inside a directory.

Consider how to apply changes to multiple files at once.