Linux Tutorials

Complete Tutorials 1-6. If you need a file for copying, you may use nacl01.dat. Much more information can be obtained from the Introduction to Linux and the Beginner's Guide to Debian Etch, the distribution being used in Room 112.

You may complete the tutorials by going into room 112 or you can log in remotely from any other computer (since no graphical interface is required for this assignment).

• If you have a Macintosh: Simply open a terminal window and do the exercises on your computer, you have a fully functional Unix system under the hood!
• If you have a Windows machine you have two options:
  1. Download PuTTY and use it to log into one of the cluster machines. Use your username and password and make sure to use the ssh protocol (it is encrypted so your password is not passed in plain text over the network!). The names of the computers in the cluster are listed below, any one of them will do:

     bardeen.phys.iit.edu
     bohr.phys.iit.edu
     bragg.phys.iit.edu
     compton.phys.iit.edu
     curie.phys.iit.edu
     dirac.phys.iit.edu
     franck.phys.iit.edu
     hertz.phys.iit.edu
     hess.phys.iit.edu
     lenard.phys.iit.edu
     lippmann.phys.iit.edu
     lorentz.phys.iit.edu
     onnes.phys.iit.edu
     pauli.phys.iit.edu
     rabi.phys.iit.edu
     rontgen.phys.iit.edu
     stark.phys.iit.edu
     thomson.phys.iit.edu
     wien.phys.iit.edu
     zeeman.phys.iit.edu
     

  2. Get a Knoppix or Ubuntu cd from me or download and burn an ISO image (make sure that you burn the CD as Disk at Once or it will not boot properly). Once you have this CD, you will be able to have a working Linux system to play with and you can either set aside some space on your hard disk to work under Linux or install Linux in dual boot mode on your computer.

Once you have completed the tutorials, write me a short email answering the following questions:

1. How would you protect the files a directory named "private" from access by other users on the system. Is there any user on the system who would still be able to see your files?
2. Can you find another way to protect those files which would secure from all users on the system?
3. How would you list all the processes running on your Linux system?
4. Write down a command line which would print out the number of processes that are being run with your username. Show the output of this command.
5. Find a command which can produce a *.zip file archive which can be unzipped on a Windows system?