From what I've seen it seems like the basic hotkeys do not allow such a thing, besides if I use the following command on the terminal :
screencapture -ci somepath/screenshot.jpg
It only copies the screenshot to the clipboard but doesn't create the file screenshot.jpg at all (-c copies to clipboard and -i makes the user select a rectangle region to capture)
Thanks for your help.
Best Answer
According to
man screencapture
one can only save to the clipboard or to a file: there doesn't seem to be any way around this as designed.The description of the command uses the word 'or' to indicate that only one action is possible: save the screencapture to a file or to the clipboard: