UMASK
Section: System Calls (2)
Index
Return to Main Contents
NAME
umask - set file creation mode mask
SYNOPSIS
umask(complmode)
DESCRIPTION
Umask
sets a mask used whenever a file is created by
creat(2)
or
mknod(2):
the actual mode (see
chmod(2))
of the newly-created file is the logical
and
of the given mode and the complement of the argument.
Only the low-order 9 bits of the mask (the protection bits)
participate.
In other words, the mask shows the bits to be turned off
when files are created.
The previous value of the mask is returned by the call.
The value is initially 0 (no restrictions).
The mask is inherited by child processes.
SEE ALSO
creat(2), mknod(2), chmod(2)
ASSEMBLER
(umask = 60.)
sys umask; complmode
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- SEE ALSO
-
- ASSEMBLER
-
This document was created by
man2html,
using the manual pages.
Time: 10:17:44 GMT, December 28, 2024