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CREAT(3P)                  POSIX Programmer's Manual                 CREAT(3P)



PROLOG
       This manual page is part of the POSIX Programmer's Manual.  The Linux implementation of this interface may dif-
       fer (consult the corresponding Linux manual page for details of Linux behavior), or the interface  may  not  be
       implemented on Linux.

NAME
       creat - create a new file or rewrite an existing one

SYNOPSIS
       #include <sys/stat.h>
       #include <fcntl.h>

       int creat(const char *path, mode_t mode);


DESCRIPTION
       The function call:


              creat(path, mode)

       shall be equivalent to:


              open(path, O_WRONLY|O_CREAT|O_TRUNC, mode)

RETURN VALUE
       Refer to open().

ERRORS
       Refer to open().

       The following sections are informative.

EXAMPLES
   Creating a File
       The  following  example  creates the file /tmp/file with read and write permissions for the file owner and read
       permission for group and others. The resulting file descriptor is assigned to the fd variable.


              #include <fcntl.h>
              ...
              int fd;
              mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;
              char *filename = "/tmp/file";
              ...
              fd = creat(filename, mode);
              ...

APPLICATION USAGE
       None.

RATIONALE
       The creat() function is redundant. Its services are also provided by the open() function. It has been  included
       primarily  for  historical purposes since many existing applications depend on it. It is best considered a part
       of the C binding rather than a function that should be provided in other languages.

FUTURE DIRECTIONS
       None.

SEE ALSO
       open(), the Base Definitions volume of IEEE Std 1003.1-2001, <fcntl.h>, <sys/stat.h>, <sys/types.h>

COPYRIGHT
       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Stan-
       dard  for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifica-
       tions Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers,  Inc  and  The
       Open Group. In the event of any discrepancy between this version and the original IEEE and The Open Group Stan-
       dard, the original IEEE and The Open Group Standard is the referee  document.  The  original  Standard  can  be
       obtained online at http://www.opengroup.org/unix/online.html .



IEEE/The Open Group                  2003                            CREAT(3P)