hello uf, it's been around 3 days fetching web find kind of utility or script automatically take screen-shots of desktop activity @ specified intervals. have yet found script wrote in terminal, , worked. after it, re-wrote script in text editor , saved screenshots.sh , think correct. script worked. starts work once when start file (i guess it's shell ... ?), 3 options: display content / run in terminal / run. hit run, , works fine. well, that's step forward, there's still problem remaining. actually, script automatically executed , take screen-shots since start-up, without having click on file manually @ first place. logically, went startup options, , located .sh file , selected it, wrote " sh -c'<path/to/my/.sh>' " rebooted computer, no screen-shots being token. stranger, .sh file taking process in system monitor, must running, don't understand why still have enter file manually take action. so...