A quota is the limit you have for storing data in the department’s systems. The students of the Department of Informatics have quotas as follows:

Personal data spaces (home dirs):

It refers to the U: drive you see on Windows, which is the same as Unix’s /home/students/cs/<path>/<username>

Windows Profile:

All students have a Windows Profile space limit of 80MB in total. In detail, there is a quota on the size of: Desktop and My Documents at 50MB and another 30MB for the rest of the space used by Windows. (Application Data etc).

Printing Quota:

Students are granted a credit of €10 for printing at the beginning of each Fall and Spring semester. If they need to print additional pages, they can purchase credit units through the JCC service.

Members of the academic, research, and administrative staff can print free of charge.

Information on this topic can be found in the  User Guide , in the “account activation” section.

I can solve the problem in three ways:

1. If I am in one of the Linux teaching labs (B103, 103, 101), from the login screen of a machine I press Ctrl+Alt+F1. I am transferred to a “text console” where I enter my username and password. I run the command:

du -sh $(ls -A) | sort -h

This command gives me the size of every directory and file located in my personal space, including hidden files and directories. This way I can see all files and directories along with their sizes.

Usually, the .local directory has the largest size. Run the command:

cd .local/share/Trash

and confirm with the command:

pwd

that you are inside the .local/share/Trash directory. Run:

ls -la

to see the files that are stored inside and which you have previously deleted (they were moved here). You can delete specific files using:

rm -rf <file or directory name>

or you can run:

rm -rf *

always confirming that you are in the correct directory. The command rm -rf * deletes ALL files and directories in the current directory. Then I run the command:

exit

and I will be transferred back to the graphical environment, where I can try to log in again.

See below how you can empty the “Wastebasket” at regular intervals easily from the graphical environment.

2. Another case is when the Firefox directory is too large. Firefox stores its data in the .mozilla directory. From the command you ran above, if the contents of .mozilla are large, then run:

rm -rf .mozilla

Then run:

exit

and you will be transferred back to the graphical environment, where you can try to log in again.

3. If I am in one of the Windows teaching labs (B121, B123, 101, 201), I select the U:\ drive and from the menu choose:
Organize → Folder and search options → View → Show hidden files, folders, and drives.
There I can select .mozilla and delete it, or check the size of each directory individually and delete it.

4. If I am at home, I can connect to one of the Linux lab machines with PuTTY and ssh, and then follow the steps described in case 1, in order to check the size of directories/files and delete them accordingly.

Every time you delete files or directories from your graphical environment, they are moved to the “Wastebasket”, but they still remain there and continue to take up space. It is recommended that you regularly delete the contents of the “Wastebasket”.

So, whenever you want to empty it, you can do so by clicking on it and then right-clicking. You will see the option “Empty Wastebasket” — select it, and the contents will be permanently deleted.

First, don’t turn off the computer. In this way, the changes you have made to your profile, as well as new files you have created, will not be saved!

1st Step:  Many large files are created when you run some programs, which you should delete from your profile.

You will find them in C:\Documents and Settings\<username>\Application Data (Windows XP) or C:\Users\<username>\AppData (Windows 7)

Application Data is hidden and to see it, from any folder go to: Tools Organize → Folder and search options → View → Show hidden files, folders, and drives

If you use specific settings for some of the applications that appear in Application Data, it is better not to delete the folder of the specific application. For example, if you have bookmarks in Firefox, sites in Macromedia, saved sessions in XWin, etc.

2nd Step:  Delete .eclipse, .java, .borland cookies from your profile, if of course you no longer use these applications.

3rd Step:  If you have completed the Oracle course, delete the Oracle Jar Cache folder.

4th Step:  If you cannot solve the problem then use the Helpdesk (electronic help tool) to send the problem to OTY or to ask them to create a new profile for you.

You must first connect to the VPN. Then use an FTP program (eg FileZilla) or SCP (eg WinSCP) and connect to port 22 on any Linux machine using your username and password in the section.