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NAME

       renameat - rename a file relative to directory file descriptors

SYNOPSIS

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

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

   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

       renameat():
           Since glibc 2.10:
               _XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L
           Before glibc 2.10:
               _ATFILE_SOURCE

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

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