Page 30 - Figure 11.01
P. 30
Access Lists and Groups
n Mode of access: read, write, execute
n Three classes of users
RWX
a) owner access 7 Þ 1 1 1
RWX
b) group access 6 Þ 1 1 0
RWX
c) public access 1 Þ 0 0 1
n Ask manager to create a group (unique name), say G,
and add some users to the group.
n For a particular file (say game) or subdirectory, define an
appropriate access.
owner group public
chmod 761 game
Attach a group to a file
chgrp G game
Operating System Concepts 11.30 Silberschatz, Galvin and Gagne Ó2002
