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rmdir - delete a directory
int rmdir(const char *pathname);
rmdir() deletes a directory, which must be empty.
On success, zero is returned. On error, -1 is returned, and errno is
EACCES Write access to the directory containing pathname was not
allowed, or one of the directories in the path prefix of
pathname did not allow search permission. (See also
EBUSY pathname is the current working directory or root directory of
EFAULT pathname points outside your accessible address space.
EINVAL pathname has . as last component.
ELOOP Too many symbolic links were encountered in resolving pathname.
pathname was too long.
ENOENT A directory component in pathname does not exist or is a
dangling symbolic link.
ENOMEM Insufficient kernel memory was available.
pathname, or a component used as a directory in pathname, is
not, in fact, a directory.
pathname contains entries other than . and .. .
EPERM The directory containing pathname has the sticky bit (S_ISVTX)
set and the process’s effective user ID is neither the user ID
of the file to be deleted nor that of the directory containing
it, and the process is not privileged (Linux: does not have the
EPERM The filesystem containing pathname does not support the removal
EROFS pathname refers to a file on a read-only filesystem.
SVr4, SVID, POSIX, 4.3BSD
Infelicities in the protocol underlying NFS can cause the unexpected
disappearance of directories which are still being used.
rm(1), rmdir(1), chdir(2), chmod(2), mkdir(2), rename(2), unlink(2)