


      UMASK(1)                    (UNIX 5.0)                   UMASK(1)



      NAME
           umask - set file-creation mode mask

      SYNTAX
           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
           normally 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.

           Umask is recognized and executed by the shell.

      SEE ALSO
           chmod(1), sh(1), chmod(2), creat(2), umask(2).
































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