|UNLINKAT(2)||Linux Programmer's Manual||UNLINKAT(2)|
NAMEunlinkat - remove a directory entry relative to a directory file descriptor
int unlinkat(int dirfd , const char * pathname , int flags );
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:
DESCRIPTIONThe unlinkat() system call operates in exactly the same way as either unlink(2) or rmdir(2) (depending on whether or not flags includes the AT_REMOVEDIR flag) except for the differences described in this manual page.
- By default, unlinkat() performs the equivalent of unlink(2) on pathname. If the AT_REMOVEDIR flag is specified, then performs the equivalent of rmdir(2) on pathname.
RETURN VALUEOn success, unlinkat() returns 0. On error, -1 is returned and errno is set to indicate the error.
ERRORSThe same errors that occur for unlink(2) and rmdir(2) can also occur for unlinkat(). The following additional errors can occur for unlinkat():
- dirfd is not a valid file descriptor.
- An invalid flag value was specified in flags.
- pathname is relative and dirfd is a file descriptor referring to a file other than a directory.
VERSIONSunlinkat() was added to Linux in kernel 2.6.16; library support was added to glibc in version 2.4.
CONFORMING TOPOSIX.1-2008. A similar system call exists on Solaris.
NOTESSee openat(2) for an explanation of the need for unlinkat().
SEE ALSOopenat(2), rmdir(2), unlink(2), path_resolution(7)
COLOPHONThis page is part of release 3.53 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/.