Changes the owner of a file
chown [options] owner:group file-list
chown [options] --reference=rfile file-list
The chown utility changes the owner of a file.
The owner:group is the name or numeric user ID of the new owner of the file and/or the name or numeric group ID of the new group that the file is associated with, as specified following:
owner The new owner of file-list; the group is not changed
owner:group The new owner and new group association of file-list
owner: The new owner of file-list; the group association is changed to that of the new owner's login group
:group The new group associated with file-list; the owner is not changed
The file-list is a list of pathnames of the files whose ownership you want to change.