UMASK(2) Linux Programmer's Manual UMASK(2) NAME umask - set file creation mask SYNOPSIS #includeint umask(int mask); DESCRIPTION umask sets the umask to mask & 0777. The umask is used by open(2) to set initial file permis- sions on a newly-created file. Specifically, permissions in the umask are turned off from 0666 (so, for example, the common umask default value of 022 results in new files being created with permissions 0666 & ~022 = 0755 = rw- r--r--). RETURN VALUE The previous value of the mask is returned. CONFORMING TO SVr4, SVID, POSIX, X/OPEN, BSD 4.3 SEE ALSO creat(2), open(2) Linux 24 July 93 1