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RENAMEAT(2)		   Linux Programmer's Manual		   RENAMEAT(2)

NAME
       renameat - rename a file relative to directory file descriptors

SYNOPSIS
       #define _ATFILE_SOURCE
       #include <fcntl.h> /* Definition of AT_* constants */
       #include <stdio.h>

       int renameat(int olddirfd, const char *oldpath,
		    int newdirfd, const char *newpath);

DESCRIPTION
       The  renameat()	system	call  operates	in  exactly  the  same	way as
       rename(2), except for the differences described in this manual page.

       If the pathname given in oldpath is relative, then  it  is  interpreted
       relative	 to  the directory referred to by the file descriptor olddirfd
       (rather than relative to the current working directory of  the  calling
       process, as is done by rename(2) for a relative pathname).

       If oldpath is relative and olddirfd is the special value AT_FDCWD, then
       oldpath is interpreted relative to the current working directory of the
       calling process (like rename(2)).

       If oldpath is absolute, then olddirfd is ignored.

       The interpretation of newpath is as for oldpath, except that a relative
       pathname is interpreted relative to the directory referred  to  by  the
       file descriptor newdirfd.

RETURN VALUE
       On  success,  renameat() returns 0.  On error, -1 is returned and errno
       is set to indicate the error.

ERRORS
       The same errors that occur for rename(2) can also occur for renameat().
       The following additional errors can occur for renameat():

       EBADF  olddirfd or newdirfd is not a valid file descriptor.

       ENOTDIR
	      oldpath  is relative and olddirfd is a file descriptor referring
	      to a file other than a directory; or  similar  for  newpath  and
	      newdirfd

VERSIONS
       renameat() was added to Linux in kernel 2.6.16.

CONFORMING TO
       POSIX.1-2008.

NOTES
       See openat(2) for an explanation of the need for renameat().

SEE ALSO
       openat(2), rename(2), path_resolution(7)

COLOPHON
       This  page  is  part of release 3.22 of the Linux man-pages project.  A
       description of the project, and information about reporting  bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.

Linux				  2008-08-21			   RENAMEAT(2)
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