1. To compile the program "My_Alarm.c", use the following command:
   
   make
   
2. To run the executable code, use the following command:
   
   ./My_Alarm
   
3. At the prompt "alarm> ", type in the number of seconds at which the alarm
   should expire, followed by the text of the message.
   
   For example:
   
   alarm> 2 Good Morning!
   
   (To exit from the program, type Ctrl+D.)
   
4. To read the output from the testing procedures, use the following command:
    
   cat Test_output