group permission problems
 

I'm having some problems with group permissions. For some reason they just don't seem to work.

The way I understand it is that if a user is a member of a group and that file is owned by that group, the group permissions of that file affects the user. But it just doesn't.

For example, a file named fish:

ls -l fish
----rwx--- 1 ichi games 8 Aug 8 23:06 fish

Group permissions are read, write and execute, so I should be able to read it, alter it, and execute if it's executable, if my user is a members of the games group. Which I am:

cat /etc/group | grep ichi
games:x:35:ichi

groups
wheel audio cdrom video games usb users portage

So I'm definately in the group. Yet when I try to read it:

cat fish
cat: fish: Permission denied

Does anyone know why this might happen?

Thanks in advance.

You're also the owner of the file. Change the mode to 0770.

So if I'm the owner of a file as well as in the file's group, only owner permissions affect?

Yes. Since you own the file, you could change the permissions. Also, if you have write permissions on the directory , you could delete it.

OK, thank you :)

Why do you had it set up that the owner doesn't have permissions but the group does?

I can't think of any reasons for why to do things that way so you have me curious now.

To serve as an example, to test my theory :p