better file not found handling

uquiz

@@ -15,12 +15,27 @@ uquiz is a simple user based quiz engine
 
 print(motd)
 
-if len(sys.argv) < 2:
-    print('run with the uquiz file as an arg to start')
+if len(sys.argv) < 2 or sys.argv[1] == 'help':
+    print("""
+    Hi, welcome to uquiz, lickthecheese's userdir based assessment engine.
+    
+    To get started, type in a test name as the first argument of this
+    command, or make your own test by making a json file in your ~/.uquiz
+    
+    There is not much documentation at the moment of how to make a uquiz
+    compatable file, however you can just look at examples until i make
+    some docs lol
+    """)
     sys.exit()
 
+
+
 filename=subprocess.run(['bash -c "find /home/*/.uquiz/* | grep \'{}\' | head -n 1"'.format(sys.argv[1])], shell=True, stdout=subprocess.PIPE).stdout.decode('utf-8')[:-1]
 
+if not filename:
+    print('Whoops! I cant find that quiz, try specifying the absolute path.')
+    sys.exit()
+
 print('Using "{}"! wrong quiz file? specify a complete path (make sure your quiz file is in a .uquiz/ in a homedir)\n'.format(filename))
 
 answers = []