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Creating the class directory
To create a class directory, execute a command line like the following:
class -new directoryname instructor
Consider this example: class -new cs123 smith
For this example, the class directory will be called cs123. Username smith will have instructor access to the class. The
instructor doesn't need to join the class unless he/she want to have a personal class directory.
The directory name must be 2-7 characters in length. The directory is retained until the end of the semester. There is a
class library link in each student's subdirectory. Instructors have read and update access to the library, and the
students will have read-only access. Instructors also have read access to each student's individual class directory.
If more than one person is to have instructor access, additional instructors can be added by the Technology Support
Center. Just send an email to tsc@bgnet.bgsu.edu and provide the username of the
additional instructor and the name of the bgunix class directory.
Joining the class
Each student in your class needs to execute the following command to create a class directory and to have access to the
class library:
class -join directoryname
The student uses the directoryname that you specified when the class directory was created. Students should be told to do
all work for the class in the class directory. You will have access to view all files in the student's class
directory, but you should not attempt to edit files or add files in the student's directory. The student will not be
able to edit or delete these files if you do so. (This problem can be fixed, though, with the technique described in the
following section.)
Fixing permissions
You are supposed to have read access to any file found in the student's class directory or in any subdirectory of the
student's class directory. However, students who use certain visual editors on bgunix will inadvertently create a
file that you can't read. There are also other ways that protections can get set inappropriately. You can run a
utility to fix any file protection problems. This is the command to use:
class -fix directoryname
This command will run automatically when you collect assignments using csclass.
Adding files to the class library
When you want to share a file with a student, you should copy it to your class library (using the cp command). Do not use
the mv command to put things in the library or the file might not have the proper group setting. If you find that some
file doesn't have proper protection settings, you can use the following commands to reset protections. Use the
following command to set the protection for a text file:
chmod 6640 filename
Use the following command to set the protection for an executable file or shell script:
chmod 775 filename
You can fix the permissions for all files in the class library by executing the following command:
class -fix directoryname
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