When we simply run the program without passing any parameters, the help screen is displayed:
$ ./runwalk_timer Usage: ./runwalk_timer Run-for[sec] Walk-for[sec] [verbosity-level=0||2] Verbosity Level :: 0 = OFF [1 = LOW] 2 = HIGH$
As can be seen, the program expects a minimum of two parameters:
- The time to run (in seconds) [required]
- The time to walk (in seconds) [required]
- The verbosity level [optional]
The optional third parameter, the verbosity level, allows the user to request more or less information as the program executes (always a useful way to instrument, and thus help debug, programs). We provide three possible verbosity levels:
- OFF: Nothing besides the required matter is displayed (pass the third parameter ...