Parameter
install/umask
Short text
Mask for modifying the file permission bits
Parameter Description
Whenever files need to be created, the kernel often uses this mask to modify the permission bits intended for the file in question.
Application Area
Install
Parameter Unit
9 bits
Default Value
000 – no additional restriction; 077 – recommended for the most security
Operating System Restrictions
UNIX only
Database System Restrictions
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Are other parameters affected or dependent?
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Values allowed
9 bits in octal format
