Test #2 Shell Programming

     DAT2330 - Ian Allen - Fall 2004     -1-                        100 minutes

     Shell Programming - Points: 64  (6 of 15%)

     Write code for an executable shell script that will do the following
     actions, in the exact order given below.  (You will write approximately 17
     lines of executable code, plus a step number comment before each step.)
     For full marks, you must put a one-line comment containing the step number
     in front of the executable code in each step.  Do not put a Step Number
     comment as the first line of the file!
                      ________________________________________

       1.   [Points: 3] Start your script with all the parts of a correct
            DAT2330 executable script header.

       2.   [Points: 1] Display the current working directory.

       3.   [Points: 2] Display your full name and your Algonquin (not Hotmail)
            email address.

       4.   [Points: 2] Display the command search path used by this shell
            script.

       5.   [Points: 4] Display the current date with UPPER CASE letters.

       6.   [Points: 2] Display this punctuated sentence on the screen:

                 It's a nice "day" today.

            The exact punctuation shown must appear on the screen.

       7.   [Points: 6] Calculate and display one number that is the count of
            files of type script in the /bin directory.  (One number only.)

       8.   [Points: 6] Extract and display a list of the unique shells from
            the Unix password file.  (Hint: Each field in the password file is
            delimited [separated] by a colon character.  Your Running Linux
            textbook tells you what each field means.)

       9.   [Points: 7] Display a list of the unique days of the week on which
            this machine was rebooted.  (Hint: See a similar question in
            Exercise #1.)

       10.  [Points: 11] Calculate and display the five most used fields in the
            Unix password file along with the count of how many times each
            field was used in the file.  The output should be sorted in
            descending order by count.  (Hint: Each field in the password file
            is delimited [separated] by a colon character.  Process the file to
            put each field on its own line first.)

       11.  [Points: 2] Make a copy of the above working pipeline.  Change the
            copy of the pipeline to display only the five most used pathnames
            in the password file.  (Pathnames must contain a slash.)

       12.  [Points: 9] Fetch the formatted web page named openformats.txt from
            the HTTP (Web) server at idallen.com and store the formatted web

     Script Programming      DAT2330 Unix Test #2 - 15%             100 minutes

     DAT2330 - Ian Allen - Fall 2004     -2-                        100 minutes

            page in a temporary file.  Calculate and display a count of the
            number of lines in the file that contain the phrase Microsoft USA.
            (Display only one single number.)

       13.  [Points: 3] Using the above temporary file, extract and display all
            lines containing the word http preceded by a space character (a
            five-character search pattern).

       14.  [Points: 2] Remove the temporary file.

       15.  [Points: 4] Display your numeric Unix userid number (a single
            number).  (Hint: You can find this number in the output of the id
            command or by looking for your userid in the Unix password file and
            displaying the correct field from that file.)

            Did you add shell script comment lines in front of every step?

                                          - FIN -

     Script Programming      DAT2330 Unix Test #2 - 15%             100 minutes