I don't really know the answer to that question, but AFAIK the umasks are octal numbers, and in the programming language C each number that starts with a leading zero is supposed to be an octal number - which may lead to some confusion, as the value
0123 doesn't mean 123 at all, but - wait - 83 1 times 64 + 2 times 8 + 3 so maybe the leading zero is there to show that the umask is an octal number?? Kind regards Bernd Am 25.09.2012 17:22, schrieb Smith, Ann (CTO Service Delivery):
I notice on SLES10 that the umask command displays umask as 4 digits. Yet in /etc/profile I see a 3 digit value. Customers code 3 digit values in their .profile files. Coding umask 077 or umask 0077 seems to produce the same results. Is there any meaning to the fourth (really first) digit displayed by the umask command? Annie Smith
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