CSU | CS / Checkin

How to turn in your homework

Things to keep in mind:

All assignments are to be submitted electronically and are automatically time stamped, so we know when files were submitted. PLEASE SUBMIT ASSIGNMENTS ON TIME!

Logs are kept of everything, so if you try to submit files and it does not work correctly, we can look at the logs to help identify the problems.

It is your responsibility to ensure that you have submitted all the files that are required for each assignment. All files you submit should be named appropriately. If you fail to submit homework, we cannot grade it! And if we can’t grade it, you get a zero for the assignment, so please be sure to submit things properly.

You can run the checkin program on the same file as many times as you like. The checkin program will keep every copy, but only the most recent will be graded. If, for some reason, you want an older version to be graded, let us know.

The checkin program only runs on department Linux machines. Almost all of the machines in the labs run Linux. But if for some reason you log in on a machine that runs another OS, you can log in to a linux machine and run the checkin program from there.

The checkin program will let you check in any file at all, whether it is a text file, or an executable, or a jpeg, or a video game, or a ... you get the idea ... so be careful what you submit!

The checkin program will NOT alter your copy of the file being submitted. It will just send a duplicate of it for grading. Don’t worry about it harming your files—it won’t.

You can turn in files any time you like as PA0. It is a dummy homework assignment, and is only there so you can test the submission programs out without actually turning something in.

Every assignment has three dates associated with it:

Assigned date
If you try to submit a file before it’s assigned, the checkin program won’t let you. This is so your instructor can change the assignments to match how the class is doing.
Due Date
The checkin program will remind you of the due date of an assignment when you submit it. If you are before the due date, it will let you know how much longer you have to re-sumbit a newer version before the due date. If you are after the due date, it will let you know that the assignment is late. Hopefully you will still get some partial credit.
Drop Dead Date
The date after which the homework will not be accepted. The checkin program will simply not let you submit after this date. After this date, there is no partial credit. Sorry! However, if you would like feedback on your homework after the drop dead date, you can email the homework to the TA and the TA will give you feedback on how you did (but no grade!)

The Procedure:

PAx should be whichever homework you are submitting (such as PA3 or PA1), and filenames should be replaced with whatever filenames you want so submit. You don’t need to submit all of the files at the same time if you don’t want to. One at a time is fine as well, they will only overwrite the older files if they have the SAME name.

The checkin program will tell you some messages. Hopefully, they will say encouraging things like "Checkin successful", and the current date/time, and other useful information. It will also tell you if it has made any backups of older files.

Verifying that things went smoothly (if you’re worried):

First, login to one of the CS Department Linux machines (if you aren’t on one already).

To get a list of all the files that you've ever submitted for this class:

    ~cs270/bin/peek
    

To get a list of the files for a particular homework assignment:

    ~cs270/bin/peek PAx
    

To look at a particular file that you checked in:

    ~cs270/bin/peek PAx filename
    

or:

    ~cs270/bin/peek PAx filename | more
    

However, if you turned in the assignment late, it will get renamed—see the next section.

Late Homework

If you turn in your homework after the Due Date (see above), but before the Drop Dead Date, the assignment will get renamed: the file foo.c will become LATE_foo.c. This is so that the people grading the homework will know that it’s late. This renaming may affect the results you get from the ~cs270/bin/peek command.

Checking your grades (and comments):

To see all your grades for this class:

    ~cs270/bin/grade
    

To see just the grade for a particular assignment, along with any remarks from the grader:

    ~cs270/bin/grade PAx
    

Making it easier:

You may not like typing in such long commands. In that case, you can add aliases to your .cshrc file:

    alias ci270 '~cs270/bin/checkin'
      alias pk270 '~cs270/bin/peek'
    

The effect would be that you would only need to type:

    ci270 PA2 myfile.txt
    

instead of

    ~cs270/bin/checkin PA2 myfile.txt
    

An example

Let’s say you wanted to turn in a file Results.txt for homework #2:

    % cd ~/Assignment2
      % ls
      Results.txt  SomeOtherFile.txt  SomeThingElse.txt
      % ~cs270/bin/checkin PA2 Results.txt
      Checking in files for assignment 'PA2'
      Current time is: Mon Aug  8 12:16:03 2011
      Assignment is ON TIME!
      If you wish, you may turn in another (presumably better)
      version up until Fri Dec  9 23:59:59 2011
      and it will replace this version.
      
      File Results.txt was checked in.
    

Now, suppose you made a mistake and wish to fix it and submit a new copy..

    % less Results.txt
      % ~cs270/bin/checkin PA2 Results.txt
      Checking in files for assignment 'PA2'
      Current time is: Mon Aug  8 13:45:35 2011
      Assignment is ON TIME!
      If you wish, you may turn in another (presumably better)
      version up until Fri Dec  9 23:59:59 2011
      and it will replace this version.
      
      Renaming old Results.txt to Results.txt.old
      File Results.txt was checked in.
      % ~cs270/bin/peek
      Size        Date             Time      Assignment  File
      ----------  ---------------  --------  ----------  ----
      13703  Mon Aug  8 2011  13:45:35  PA2         Results.txt
      13814  Mon Aug  8 2011  12:16:03  PA2         Results.txt.old
      
      2 Files listed