[Linux] Effectively delete a lot of files in a directory

Ref - http://unix.stackexchange.com/questions/37329/efficiently-delete-large-directory-containing-thousands-of-files

When thousands of files are on one directory, it is really time consuming when delete al files.

In this case, you can effectively delete use rsync (To be honest, I don't know rsync, but just enter the follow commands: 

mkdir empty_dir
rsync -a --delete empty_dir/    yourdirectory/

It works!