Re: what is umask?
- From: Lew Pitcher <Lew.Pitcher@xxxxxx>
- Date: Tue, 06 Dec 2005 15:59:44 -0500
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Osman wrote:
> Dear Member what is umask?
> and what is the relationship between umask and the file permission
umask identifies (to the kernel) which file permission bits you /don't/
want to be set. If a program sets those bits, the umask will unset them.
For instance, if you have a program that always creates it's output file
with
u=rw,g=rw,o=rw (666)
and you /don't/ want "group write" or "other write" permissions to be
set, you would set your umask to
umask 022 (g=w,o=w)
and that would ensure that any file created by processes that inherit
the umask do /not/ set the "group write" or "other write" permission bits.
- --
Lew Pitcher, IT Specialist, Enterprise Data Systems
Enterprise Technology Solutions, TD Bank Financial Group
(Opinions expressed here are my own, not my employer's)
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