i actually first copied the three files in a foulder called "exposure" in home/usr/. then i first opened the lense cover... took a photo with default settings then close the camera application and ran xterminal.. in the xterminal i wrote "photo_bracketing.sh" followed by enter
but then i get the following messege:
-sh: photo_bracketing.sh: not found

now what am i doing wrong? do i have to install anything else before doing this?