PROLOG

       This  manual  page  is part of the POSIX Programmer's Manual.  The Linux implementation of
       this interface may differ (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 creat() function shall behave as if it is implemented as follows:

           int creat(const char *path, mode_t mode)
           {
               return 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 *pathname = "/tmp/file";
           ...
           fd = creat(pathname, 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

       mknod(), open()

       The Base Definitions volume of POSIX.1‐2008, <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,  2013  Edition,  Standard  for Information Technology -- Portable Operating System
       Interface (POSIX), The Open Group Base Specifications Issue 7, Copyright (C) 2013  by  the
       Institute  of  Electrical  and  Electronics  Engineers,  Inc and The Open Group.  (This is
       POSIX.1-2008 with the  2013  Technical  Corrigendum  1  applied.)  In  the  event  of  any
       discrepancy  between  this  version and the original IEEE and The Open Group Standard, the
       original IEEE and The Open Group Standard is the referee document. The  original  Standard
       can be obtained online at http://www.unix.org/online.html .

       Any  typographical  or  formatting errors that appear in this page are most likely to have
       been introduced during the conversion of the source files to man page  format.  To  report
       such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html .