Haven't actually tried it but.....

Couldn't you do it with symbloic links to the binaries?
In other words have multitable sym links with permissions set
for the individual groups pointing to the binaries.

Sounds messy......

Haven't looked into it lately, but what you really want is......
Extended attributes and access control lists. 


> Thanks for A.J. Venter.  
>  
> But, as for restrict access to groups, I have a more complicated question: 
>  
> If I have 6 groups of user. The group names are: sec1, sec2, sec3, sec4, admin1, 
> admin2. Each group includes many 
> member users. 
>  
> And I have 3 applications. say, 1. /usr/bin/evolution,  2. /usr/bin/mozilla 3. 
> /usr/bin/vim 
>  
> I want applications /usr/bin/evolution   /usr/bin/mozilla/ to be available to all 
> member users in sec1, sec2, sec3, sec4; 
> and all above 3 applications available to member users in admin1, admin2 groups.  
>  
> That is to say, that I want to give access of some application program to multiple 
> groups. How can we do this in 
> Linux/Unix? 
>  
> Dongsheng 
>  
>  
>  "A.J. Venter" <[EMAIL PROTECTED]>: 
>  
> > It is doable but it will take some work. 
> > 
> > First create a unix group for teachers, and another for students. 
> > 
> > Next find the actual files that load the programs you want to restrict. 
> > Say /usr/bin/evolution  
> > Change the group ownership of that file to teachers: 
> > chgrp teachers /usr/bin/evolution 
> > Remove execute permissions for all: 
> > chmod a-x /usr/bin/evolution 
> > Finally give execute permissions to owning group: 
> > chmod g+x /usr/bin/evolution 
> > 
> > Users in the teachers group can now run evolution, but nobody else can. 
> > 
> > Variations on the theme should give you most of what you need.  
> > 
> > Ciao 
> > A.J. Venter 
> > On Thursday 19 Jun 2003 5:08 pm, dongsheng wrote: 
> > > example: 
> > > 
> > > we have two groups of user, students and teacher. each 
> > > group includes several users. 
> > > 
> > > we want to make some resources such as applications 
> > > only available to members in teachers group, while some 
> > > other applications are available to members in students 
> > > group. It also means that students are not allowed to 
> > > access some files which only teathers can access. 
> > > 
> > > can sb help me for that? 
> > > 
> > > 
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