COP3832, Fall 2001, Homework 2

Due: Monday 10/8 at the start of class

To hand in the assignment

  1. Hand in a printout of the perl program
  2. Hand in a printout of the three configuration files: httpd.conf, srm.conf, access.conf.
  3. Upload a text version of the perl program
  4. Upload the three configuration files: httpd.conf, srm.conf, access.conf.
  5. Send me an email with the URL to your web site.

Get your server running on mongoose. Create a simple home page in the document root.

Write a perl program. The program will be executed from the command prompt on mongoose. It will not be called from a web browser (you don't know how to do that yet, so please don't try.)

Write a perl program that will display a menu like the following 

1. Count Words
2. Process Numbers
3. Quit Program

Please make a selection:

The program will accept input and perform an action as described below. After performing the action for the menu item, the menu will be displayed again. Continue accepting input and performing an action until the user inputs 3. After selecting option 3, display a count of how many times option 1 was selected and a count of how many times option 2 was selected. The valid input values are 1, 2, 3. If any other value is entered by the user, display an appropriate error message and redisplay the menu.

Perform these actions for the selected menu item

Count Words
Prompt the user for the name of a file. The file should contain one word per line. If the file exists, display a table of words and the number of times each word appeared in the file. Display the words and their count in alphabetical order of the words. For an extra point on the homework, also display the words and their count in numeric order of the count. If the file doesn't exist, display an error message. Do not distinguish between the case of letters in a word: Apple, apple, APPLE would be three occurences of the same word.
Process Numbers
Prompt the user for the name of a file. The file should contain one number per line. Display the sum of all the numbers, the count of numbers, the maximum number, the minimum number, and the average of all the numbers. Also display a table that lists each number that is above the average, its distance above the average, its distance above the minimum, and its distance below the maximum. If the file doesn't exist, display an error message.

Notes

These are a list of test files that you can use. I may use different files to test your programs.

Here are some examples of the output:

Count Words Count Words Extra Process Numbers 
14      a
1       action
1       again
4       all
1       allows
1       along
1       also
1       an
2       and
1       appear
1       appears
6       are
4       as
7       assembly
3       assume
8       at
1       avery
1       back
2       be
1       because
2       branch
4       but
1       can
47      car
6       cars
1       case
11      complete


47      car
32      the
24      to
19      min
18      1
16      inst
14      a
14      4
14      2
12      it
11      would
11      station
11      complete
11      each
10      on
10      is
9       3
9       minutes
8       there
8       at
7       working
7       line
7       assembly
7       20
6       takes

     average     minimum     maximum       total       count
          47           2          99        1383          29
      number   delta avg   delta max   delta min
          88          41         -11          86
          90          43          -9          88
          74          27         -25          72
          99          52           0          97
          95          48          -4          93
          74          27         -25          72
          83          36         -16          81
          80          33         -19          78
          80          33         -19          78
          52           5         -47          50
          86          39         -13          84
          67          20         -32          65
          96          49          -3          94