Setting (Recursively) Modes on Files

[Frank P. Bresz]

Yesterday I said : 


>>Hi,
>>	I often have the case where I want to open up an area of a
>>directory to group access.  However I am using SCCS and have many files
>>that should remain read only.  A mindless

>>	chmod -R g+w .

>>	Trashes the sanctity of SCCS by making some things group writable
>>while they aren't user writable.

>>	How can I cleanly execute this command?

>>	awk/sed/sh/find (or whatever) accepted

>>	Please no PERL or CSH.

>>	SunOS4.1 (but please don't make it specific to that platform)

Well the answer from Gene Spafford <spaf at cs.purdue.edu>
was the exact answer I was looking for : 

>chmod -R g=u .

>will set the group protections for all files and directories to the
>the same as the owner protections....  is that what you wanted?
>
>--spaf

	Thanks a lot Gene, for a neat concise answer.  I guess I didn't
quite get the meaning of = and the phrase :  

          The letters u, g, or o indicate that permission  is  to
          be taken from the current mode for the user-class.


This is being sent to try and stem the tidal wave of answers.
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| ()  ()  () | Frank P. Bresz   | Westinghouse Electric Corporation
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