## Exercise 1

 1. Write a shell script that:
    
    a. creates a background process that writes a line with a dot
       into ‹file.txt› every second
    b. create another process that counts the lines in ‹file.txt›
       and prints the count to the terminal every second
    c. use ‹ps -u› and ‹grep› to print information about both
       processes every second for 10 seconds
    d. kill both background tasks

That is all for the user-level part. Let's move on to C:

    $ micro fork.c
