umask question
Jerry Feldman
gaf at blu.org
Fri Jul 12 14:05:39 EDT 2002
In addition to what has been said before, the execute bit is never set when
you create a file other than a directory. This is why you must always set
the execute bit for a shell script. When you create a directory the execute
bit is set. The linker will also set the execute bits. Normally, you use
the umask command (normally a shell builtin) to restrict permissions. This
is why it is an inverse and xored with the default permissions.
For example, if you have a umask of 333, when you create a directory, the
permissions will be 444, because you are turning off the execute and write
bits.
So, a umask 000 is simply a nop.
David Kramer wrote:
> (this is on freebsd if it matters)
>
> If I "umask 0" and create a file, that file is coming out 666 instead of
> 777. Am I missing something?
--
Jerry Feldman <gaf at blu.org>
Boston Linux and Unix user group
http://www.blu.org PGP key id:C5061EA9
PGP Key fingerprint:053C 73EC 3AC1 5C44 3E14 9245 FB00 3ED5 C506 1EA9
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