Im unable to run make hello - I have read through the other troubleshoot but unable to find out what iam missing. Please can someone help me if I have entered something incorrectly. Error make: *** No rule to make target `hello'. Stop.
Based on the screenshot, I'd say you are in directory
~/workspace/pset1, where your hello.c lies. make will try to guess what you meant with
make hello, but since there is no makefile, and it does not find anything named "hello.c" or similar, there is no standard rule it could apply.
Change the directory by typing
and then try again
 As @mars pointed out in the comments, it's
stdio.h, which stands for STanDard Input/Output (and there's no "u" in "standard")