Introduction and OverviewIndex
This is an overview of how you are expected to complete this assignment.
Read all the words before you start working.
- Complete the Tasks listed below.
- Verify your own work before running the Checking Program.
- Run the Checking Program to help you find errors.
- Submit the output of the Checking Program to Blackboard before the
due date.
- READ ALL THE WORDS to work effectively and not waste time.
Since we also do manual marking of student assignments, your final mark
may not be the same as the mark submitted using the current version of
the Checking Program. We do not guarantee that any version of the
Checking Program will find all the errors in your work. Complete
your assignments according to the specifications, not according to
the incomplete set of the mistakes detected by the Checking Program.
When you are finished the tasks, leave the files and directories in
place as part of your deliverables. Do not delete any assignment work
until after the term is over! Assignments may be re-marked at any time;
you must have your term work available right until term end.
Searching the course notesIndex
The previous term’s course notes are always available on the Internet
here: CST8207 GNU/Linux Operating Systems I.
All the current and previous terms notes files are also stored on the
CLS. You can learn about how to read and search these notes files using
the command line on the CLS under the heading Copies of the CST8207
course notes near the bottom of the page Course Linux Server.
The current CST8177 term notes are searchable there, too!
The Source DirectoryIndex
All references to the “Source Directory” below are to the CLS directory
~idallen/cst8177/13w/assignment07/ and that name starts with a tilde
character “~” followed by a userid with no intervening slash.
The leading tilde indicates to the shell that the pathname starts with
the HOME directory of the account idallen.
Checking, Marking, and Submitting your WorkIndex
The checking program resides on the Course Linux Server, but your
work is on your CentOS Virtual Machine. There is a new Fetch
program that you must download and use on your CentOS machine to copy
information from your CentOS Virtual Machine to your account on the CLS
so that the checking program can check it on the CLS.
Once the Fetch program has fetched these files from your Virtual
Machine to the CLS, you can run the checking program on the CLS to check
what is saved in the files. When you make changes on your CentOS Virtual
Machine, you need to run the Fetch program again to update the saved
files on the CLS.
Simply running the checking program on the CLS will not update the
saved files on the CLS. You must run the Fetch program when you
make changes on your CentOS Virtual Machine.
Part I - Fetch and CheckIndex
Do all the following steps on your CentOS 5.8 VM.
Read through the whole list before you start typing anything.
Log in to CentOS as your non-root account (same userid as Blackboard).
Create a directory in your account named
Assignments/assignment07 (exactly the same directory
hierarchy as you already have on the CLS), unless you already have this directory.
Change to your above assignment07 directory.
As shown below, use wget to get a copy of the Fetch program
from this URL into a file named do.sh:
http://teaching.idallen.com/cst8177/13w/notes/data/assignment07wget.sh
CentOS$ wget -O do.sh http://teaching.idallen.com/cst8177/13w/notes/data/assignment07wget.sh
Saving to: `do.sh'
Make sure you have a file named do.sh in your directory. You only
need to download this once.
Become the root user on CentOS.
As shown below, use sh to run the do.sh script you just
downloaded to CentOS with the USER environment variable set to your
own CLS account userid. (Do not use abcd0001.)
CentOS# USER=abcd0001 sh do.sh # use your *own* userid *not* abcd0001
This Fetch program will connect from CentOS to the CLS using your
account name. It will copy files from CentOS to your assignment07
directory on the CLS. It will then run the checking program on the
CLS to check your work. You will need to answer one question about
your IP address, and then wait and type in your CLS password.
It will look something like this:
CentOS$ whoami
abcd0001
CentOS$ pwd
/home/abcd0001/Assignments/assignment07
CentOS$ wget -O do.sh http://teaching.idallen.com/cst8177/13w/notes/data/assignment07wget.sh
Saving to: `do.sh'
CentOS$ su
Password:
CentOS# USER=abcd0001 sh do.sh # use your *own* userid *not* abcd0001
---------------------------------------------------------------------------
abcd0001: FETCH version 1. Connecting to CLS as USER='abcd0001' using ssh
---------------------------------------------------------------------------
abcd0001: Use local Algonquin IP cst8177-alg.idallen.ca [y/N]? n
abcd0001: Please wait; using ssh to connect to user 'abcd0001' on cst8177.idallen.ca ...
*** COURSE LINUX SERVER ***
abcd0001@cst8177.idallen.ca's password: # enter your CLS password
---------------------------------------------------------------------------
idallen-ubuntu assignment07fetch_server.sh version 0 run by abcd0001.
Please wait; collecting info from abcd0001 Virtual Machine
---------------------------------------------------------------------------
VM files collected into Assignments/assignment07/abcd0001.tar.bz on CLS.
Now running check program for abcd0001 on CLS:
----------------------------------------------------------------------------
idallen-ubuntu check: Assignments/assignment07 check program version 00
*** Checking account for abcd0001 on idallen-ubuntu ***
[... checking program output appears here ...]
Notes on the Fetch program
- This Fetch program updates your saved files on the CLS and then
runs the checking program on the CLS. If you only run the checking
program on the CLS, it won’t update the files from your CentOS VM and
will check the exiting files saved under
assignment07 on the CLS.
- The checking program is running on the CLS, not on your CentOS VM.
At the start, the checking program will issue messages relevant to
your account on the CLS (e.g. errors in your CLS
.bashrc file or
world-writable files on the CLS). These errors are on the CLS, not
on your CentOS machine.
Part II - Check and SubmitIndex
When you are done with your assignment, you need to run the checking
program one last time on the CLS and submit the output file, as follows:
Do all this on the Course Linux Server:
There is a Checking Program named assignment07check in the
Source Directory on the CLS. Create a Symbolic Link to this program
named check under your new assignment07 directory so
that you can easily run the program to check your work and assign
your work a mark. Note: You can create a symbolic link to this
executable program but you do not have permission to read or copy
the program file.
Execute the above “check” program on the CLS using its symbolic link.
(Review the CST8207 Search Path notes if you forget how to run a
program by pathname from the command line.) This program will check
your work, assign you a mark, and display the output on your screen.
(You may want to paginate the long output so you can read all of it.)
You may run the “check” program as many times as you wish, to correct
mistakes and get the best mark. Some tasks sections require you
to finish the whole section before running the checking program
at the end; you may not always be able to run the checking program
successfully after every single task step.
When you are done with checking this assignment, and you like what
you see on your screen, redirect the output of the Checking
Program into the text file assignment07.txt under
your assignment07 directory on the CLS. Use the exact name
assignment07.txt in your assignment07 directory. You only
get one chance to get the name correct. Case (upper/lower case
letters) matters. Be absolutely accurate, as if your marks depended
on it. Do not edit the file.
Transfer the above assignment07.txt file from the CLS to your local
computer and verify its contents. Do not edit this file! No empty
files, please! Edited or damaged files will not be marked. You may
want to refer to this term’s updated File Transfer notes.
Submit the assignment07.txt file under the correct Assignment
area on Blackboard (with the exact name) before the due date.
Upload the file via the assignment07 “Upload Assignment” facility
in Blackboard: click on the underlined assignment07 link in
Blackboard. Use “Attach File” and “Submit” to upload your
plain text file.
No word-processor documents. Do not send email. Use only
“Attach File”. Do not enter any text into the Submission or
Comments boxes on Blackboard; I do not read them. Use only
the “Attach File” section followed by the Submit button.
(If you want to send me comments about your assignment, use email.)
Your instructor may also mark the assignment07 directory in your
CLS account after the due date. Leave everything there on the CLS.
Do not delete any assignment work from the CLS until after the
term is over!
Use the exact file name given above. Upload only one single file of plain
text, not HTML, not MSWord. No fonts, no word-processing. Plain text only.
Did I mention that the format is plain text (suitable for
VIM/Nano/Pico/Gedit or Notepad)?
NO EMAIL, WORD PROCESSOR, PDF, RTF, or HTML DOCUMENTS ACCEPTED.
No marks are awarded for submitting under the wrong assignment number
or for using the wrong file name. Use the exact name given above.
WARNING: Some inattentive students don’t read all these words. Don’t make
that mistake! Be exact.
READ ALL THE WORDS. OH PLEASE, PLEASE, PLEASE READ ALL THE WORDS!
Author:
| Todd Kelley / Richard Donnelly and
| Ian! D. Allen - idallen@idallen.ca - Ottawa, Ontario, Canada
| Home Page: http://idallen.com/ Contact Improv: http://contactimprov.ca/
| College professor (Free/Libre GNU+Linux) at: http://teaching.idallen.com/
| Defend digital freedom: http://eff.org/ and have fun: http://fools.ca/
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