## Exercise 1

 1. Write a shell script that does the following:
    
    a. count and print how many environment variables are set
    b. set the variable ‹ENV_SIZE› to this value
    c. make ‹ENV_SIZE› part of the environment
    d. compile ‹getenv.c› from earlier (in 1 step)
    e. run it with ‹ENV_SIZE› as argument

 2. That's it, now we can move on to ‹test.sh›.
