there are some useful tool
if you have so many files in a folder and you cannot use like 'cp -Rf...' command. You can try this file, and just need source files folder add. and dest folder add..
if you want to delete something that you cannot delete it by common method,you can try it.
if you have so many .doc files in a folder, and you want cahnge them to .pdf, you can try it.
you can get a color which you like by move you mouse, and get the color's RGB code