UMASK(2) SysV UMASK(2)
NAME
umask - set and get file creation mask
SYNOPSIS
int umask (cmask)
int cmask;
DESCRIPTION
umask sets the process' file mode creation mask to cmask and returns the
previous value of the mask. Only the low-order 9 bits of cmask and the
file mode creation mask are used.
SEE ALSO
chmod(2), creat(2), mknod(2), open(2).
mkdir(1), sh(1) in the SysV Command Reference.
DIAGNOSTICS
The previous value of the file mode creation mask is returned.