yass is a script that wraps around scrot & xclip.
Take screenshots with scrot
Put screenshots in clipboard
Put screenshots in files
Do both the clipboard and file at the same time
To take a clipboard screenshot, do yass -c, then you select the area to screenshot, then it copies it to the clipboard.
To take a file screenshot, do yass -f, then you select the area to screenshot, then it puts the screenshot somewhere in ~/Screenshots.
To take a file screenshot, do yass -cf, then you select the area to screenshot, then it does the previous two commands at the same time, so clipboard & file.