[KLUG Members] permissions query

[Bruce Smith]

> I've got a directory which is owned by root but a member of group users.
> 'eric' is a member of users. The directory has permissions 770. As I
> understand it, this means I should be able to read, write and execute
> the directory. 

Nope, it means you can read, write and _search_ the directory.
('x' means something different for a directory than it does for a file)

> But it won't let me, 

It won't let you do WHAT?  Execute it?  
You can't execute a _directory_ no matter the permissions.

> claiming I do not have the necessary permissions. 
> 
> When I change permissions to 775 I can get access to the directory. 

"Access"?  What do you mean by that?

> Is
> there something else necessary other than being a member of the group
> that has rwx permission?

Insufficient data ... 

 - BS