[Sussex] Unix file permissions question

[John Crowhurst]

> I want to be able to set permissions on a directory such that group (a)
> has read-only access and group (b) has read-write access.

Under normal Unix chmod rules, its not possible to have different group
access writes over files and directories beyond user, group, other.

You will need to switch to a different ACL system to be able to set
permissions between groups.

A quick googling revealed:

http://trustees.sourceforge.net/
http://sourceforge.net/projects/linux-acl/

Although these ACLs seem not to be updated.

http://acl.bestbits.at/

This one seems to be more updated.

--
John