Can I change group ownership too?

Yes, you can change group ownership using the chown command as well. The syntax allows you to specify both the user and the group. For example:

sudo chown :new_group file1.txt

This command changes the group ownership of file1.txt to new_group while keeping the current user ownership unchanged.

If you want to change both the user and the group ownership, you can do it like this:

sudo chown new_user:new_group file1.txt

Additionally, to change the group ownership of multiple files or all files in a directory (excluding subdirectories), you can use:

find /path/to/directory -maxdepth 1 -type f -exec sudo chown :new_group {} \;

This will change the group ownership of all files in the specified directory without affecting any subdirectories.