Linux 2.6 - man page for renameat (linux section 2)
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RENAMEAT(2) Linux Programmer's Manual RENAMEAT(2)
renameat - rename a file relative to directory file descriptors
#include <fcntl.h> /* Definition of AT_* constants */
int renameat(int olddirfd, const char *oldpath,
int newdirfd, const char *newpath);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
Since glibc 2.10:
_XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L
Before glibc 2.10:
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 path-
If oldpath is relative and olddirfd is the special value AT_FDCWD, then oldpath is inter-
preted 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 inter-
preted relative to the directory referred to by the file descriptor newdirfd.
On success, renameat() returns 0. On error, -1 is returned and errno is set to indicate
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.
oldpath is relative and olddirfd is a file descriptor referring to a file other
than a directory; or similar for newpath and newdirfd
renameat() was added to Linux in kernel 2.6.16; library support was added to glibc in ver-
See openat(2) for an explanation of the need for renameat().
openat(2), rename(2), path_resolution(7)
This page is part of release 3.55 of the Linux man-pages project. A description of the
project, and information about reporting bugs, can be found at
Linux 2012-05-04 RENAMEAT(2)
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