Information for Users of the SUN Workstations

Workstations in the Lab

The following workstations run UNIX operating systems: In addition, some of the PCs have installed both, the Microsoft Windows and the Solaris operating systems. At boot time, you can choose which operating system you want. If you choose "Solaris" from the boot menu, a second boot menu (called "Secondary Boot") may appear. You may ignore this and any following screens; simply wait for long enough (approx. 3 minutes) until the system will have booted automatically and you can logon.

Disk Quotas

Every user is assigned a disk quota on math.sut.ac.th. You can obtain information about the quota allocated to you by typing: quota -v . To find out whether you are exceeding your quota, simply type: quota . File space used in excess of the allocated quota must be freed within the specified time, otherwise login will be no longer possible.

Managing Disk Space

To free precious disk space, one has essentially two possibilites:

Archiving means to store a whole subdirectory into a single file. For example, to archive the subdirectory "mydir" into a file "mydir.tar", type:

tar cvf mydir.tar mydir
Then you can compress the newly created file by typing:
gzip mydir.tar
Finally, don't forget to erase the old directory,
rm -r mydir
You now have archived and compressed the directory "mydir" into a file "mydir.tar.gz".

To restore the directory, just do the reverse:

gunzip mydir.tar.gz
tar xvf mydir.tar
rm mydir.tar

Printing

The following printers are installed:
  1. F1_laser : This is an HP LaserJet 5MP Postscript printer located in the terminal room F1320/21. It is the default printer for all graduate students.
  2. C_laser : This is an HP LaserJet 6MP Postscript printer located on the 2nd floor of the C building It is the default printer for all lecturers.
  3. F1_duplex : This is an HP LaserJet 4050 Postscript printer located in the server room. It is duplex capable, and should be used mainly for jobs requiring two-sided printing. Do NOT print on used paper with this printer ! Used paper tends to get stuck in the duplexer.
Please note that the location of these printers may change from time to time.

The print command you must use depends on the type of file to be printed:

Login Files (.cshrc)

Upon login, the file "/export/share/users/cshrc" will be automatically read to set the user's environment variables. The contents of this file may change from time to time to reflect changes in the system and installed software. Users who have modified their personal .cshrc files, should therefore check this file regularly for any changes.

How to Shut a Solaris Workstation Off

A workstation running the Solaris operating system must be properly shut down before it can be turned off, otherwise some system files may get damaged. If you need to turn off a workstation, please consult the sysop for details.
Any comments ? Send email to sysop@math.sut.ac.th