[K12OSN] cron job how to

[Vern Ceder]

Hi,

As root do 'crontab -e'

Enter a line like '0/2 * * * *   /complete/path/to/your/script'

and save the file.

That will execute the script every 2 minutes of every hour, day, month 
and day of the week. You can change the 2 to whatever number of minutes 
you want (from 1 to 30)

For more help, refer to http://www.hentzenwerke.com/wp/cron_explained.htm

Cheers,
Vern

Liam Marshall wrote:
> I have a "homework folder" for each computer class where the owner is 
> the teacher of the class, the group is the group associated with that 
> class.  owner has read write execute, group has write and execute.  So 
> effectively, they can drag/drop off their assignments into this folder, 
> and after they close the window, can't access their own file, 
> effectively "handing in" their assignment.
> 
> I was quite pleased with myself until I went into one of my own class 
> homework folders.  I can see all the files( this is good) but cannot 
> open any!(this is bad!)  for myself I could get around this by logging 
> in as root and harvesting the files to mark but of course do not want 
> the other teachers to be able to do that.  I am assuming that the 
> problem lies with permissions, in that when student a creates a file by 
> dragging it into the homework folder, the permissions for THAT file 
> become theirs, as in they become the owner of that file, and not the 
> teacher.  I would love for created files to be owned by the teacher.  Am 
> I right in that?
> 
> The only way I can think of around this is to write a little bash script 
> that chown's the files in the class homework folder to change all file 
> ownership back to class teacher.  I am sure I could write this script 
> and execute it manually but have no idea how to automate it.  I have 
> heard and read about scheduling such an animal as a "cron job" but have 
> no idea how to schedule/set up such a thing
> 
> I would really appreciate help with this.
> 
> Thanks
> 
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-- 
This time for sure!
    -Bullwinkle J. Moose
-----------------------------
Vern Ceder, Director of Technology
Canterbury School, 3210 Smith Road, Ft Wayne, IN 46804
vceder at canterburyschool.org; 260-436-0746; FAX: 260-436-5137