It appears I still miss some things about the way permissions work. I am on a debian 7 system btw.
just now I have this file of which I downloaded and it belongs to
myuser:myuser, that is both user and group are set to me. It also resides in my
$HOME directory since that is where I downloaded it to.
So far so good. Now I want to share this file with some other users of the pc and for that I want to switch the group ownership of the file to group "users". however that fails:
nass@quarx:~/xmas_carol$ chgrp -R users * chgrp: changing group of movie.mov': Operation not permitted
And the contents of the folder are:
-rwxr-xr-x 1 nass nass 2482411461 Feb 6 03:57 movie.mov
I am fuzzy about what is going on with the permissions. Can someone explain