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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  fol-
       lowing 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.ker-
       nel.org/doc/man-pages/.



Linux                             2008-08-21                       RENAMEAT(2)

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