UMASK(1)             INTERACTIVE UNIX System             UMASK(1)



          NAME
               umask - set file-creation mode mask

          SYNOPSIS
               umask [ ooo ]

          DESCRIPTION
               The user file-creation mode mask is set to ooo.  The three
               octal digits refer to read/write/execute permissions for
               owner, group, and others, respectively [see chmod(2) and
               umask(2)].  The value of each specified digit is subtracted
               from the corresponding ``digit'' specified by the system for
               the creation of a file [see creat(2)].  For example, umask
               022 removes group and others write permission (files nor-
               mally created with mode 777 become mode 755; files created
               with mode 666 become mode 644).

               If ooo is omitted, the current value of the mask is printed.

               The umask command is recognized and executed by the shell.

               The umask command can be included in the user's .profile
               [see profile(4)] and invoked at login to automatically set
               the user's permissions on files or directories created.

          SEE ALSO
               chmod(1), sh(1).
               chmod(2), creat(2), umask(2), profile(4) in the INTERACTIVE
               SDS Guide and Programmer's Reference Manual.


























          Rev. Base System                                           Page 1