Mac (OS X 10.9.2) no longer saving screen shots When I try to take a screen shot (Command + Control + Shift + 4) I hear the camera shutter sound but no image appears on my desktop.

I Googled the problem and tried to change the saving location using the terminal command line as such:

defaults write com.apple.screencapture location ~/Desktop/


but this did not change anything.

Would anyone know what I can do to fix?
When I try to take a screen shot (Command + Control + Shift + 4) 


That's the problem. The shortcut to put a screenshot on the desktop is just Command + Shift + 4 (or 3).  Don't press the control key; when you do, it copies to the clipboard instead.  That's why you're not getting a file on the desktop.