CS 497C - Programming Assignment 1 - Name:_____________________________
                                                                        
    DUE: Wednesday, November 28 (in class)

    o Please show all work on a separate sheet attached to this sheet
      when you turn it in. 

    o For each exercise, submit a listing of your source code along
      with scripted output showing that the code executes correctly.
      To generate scripted output on the UNIX system, use the "script"
      command:

      $ script ex.out
      (script started, everything on the terminal goes to the file "ex.out")
      $ ex1 27 80 45
      27 45 80
      $ ex2
      (show the execution.)
      $ ex3 13
      The sum is 49.
      $ exit
      Script finished, output sent to "ex.out".

    o Both the hard copy and the electronic copy should be submitted.

    o For each exercise, submit a runnable script. The names of the script 
      should be ex1, ex2, and ex3 respectively.

    o Use the handin system to submit all code electronically. The 
      submission ID is 1:
      ~cs497c/bin/handin 1 ex1 ex2 ex3 ex.out

    o Thanks! (60 points - 20 points for each problem)


    1. Write a script to read in three numbers as arguments, compare them, 
       and list them in an ascending order. (hint: Use the if statement.)

       $ ex1 30 10 45
       10 30 45


    2. Write a command menu as follows:
     
       $ ex2

            Command Menu

       a. Current date and time
       b. Users currently logged in
       c. Name of the working directory
       d. Contents of the working directory

       Enter a, b, c, or d:

       The function for each selection is as indicated in the menu.
       (hint: Use the case statement.)


    3. Write a script to read in an odd number n as an argument and calculate 
       the arithmetic summation 1 + 3 + 5 + 7 + .... + n.
       (hint: Use the looping statement.)

       $ ex3 11
       The sum is 36.