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.1‐2017, <fcntl.h>, <sys_stat.h>, <sys_types.h>

COPYRIGHT

       Portions of this text are reprinted and  reproduced  in  electronic  form  from  IEEE  Std
       1003.1-2017,  Standard  for  Information Technology -- Portable Operating System Interface
       (POSIX), The Open Group Base Specifications Issue 7, 2018 Edition, Copyright (C)  2018  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
       Standard,  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 .

       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 .