Remove the DIRECTORY(ies), if they are empty.
ignore each failure that is solely because a directory is non-empty
remove DIRECTORY, then try to remove each directory component of that path name. E.g., `rmdir -p a/b/c' is similar to `rmdir a/b/c a/b a'.
output a diagnostic for every directory processed
display this help and exit
The full documentation for rmdir is maintained as a Texinfo manual. If the info and rmdir programs are properly installed at your site, the command