This is intended as an introduction to the use of the Linux/unix
compute server at BSC.
Working with files and directories
command line programs you might need to use. (changing passwords and moving into another directory)
Moving files to and from other computers
In order to use the compute server you first need to connect to it. My
instructions below will be on connecting to the server from on campus.
All of the tools that I'm using are freely available so you can get a
copy to work from home if you want to.
In particular on windows you want to see xming
To get xming. scroll down to the Releases section of the xming page
and get the "Xming-fonts" link in the table just below that says
"Public Domain Releases" Then you can use this link here for the actual xming setup
. (apparently they have moved several things behind pay passwords recently.
First you need to start the xserver which will allow you to have
windowed programs that you run on csdev01 display on your windows
desktop. In the image below you can find the menu options to start
xming. Start it, the only indication that it is running will be an
additional icon in the system tray.
Next, from the departments->Math & Computer Science menu start
putty. When you start it up there will be a configuration page visible.
Down near the bottom of the tree control on the left hand side is an
option for X11. Select it, and then check the checkbox labled "enable
X11 forwarding" as shown in the picture below. (if you save your
profile as I descrive in a moment you will only have to do this step
then go back to session and type in the name of the server (see the
picture below). I recommend choosing a session name and pushing the
save button. Once you have done this, then the next time you run putty
you will only have to select your session and press open to connect
with the options you have saved.
The first time you connect to csdev01 from a machine you will see a
warning message like this:
You can go ahead and select yes. Unless the machine gets reinstalled,
you shoudn't have to answer this question again.
You will then be prompted to login. Use the unix ID that you were
given, not your standard BSC login. Also when you enter your password,
remember this is old school security, you
will not see anything while you are typing the password.
password is still being entered though.
File and directory manipulation
Once you are connected I recommend that you use konqueror to do your
file management since it has an interface similar to a windows file
[jsantore@csdev01 ~]$ konqueror &
[jsantore@csdev01 ~]$ Link points to "/tmp/ksocket-jsantore"
Link points to "/tmp/kde-jsantore"
The & character give you your prompt back so that you can run
additional programs while you are waiting. You will want to use this
when starting programs which pop up a window, but not with command line
programs since you will want to see any output for those programs on
your command line.
Konqueror should look something like this (except you will have far
less in your home folder.
While you can do nearly everything in linux using windowed programs
these days, there are a couple of places that you will probably still
need to use the command line.
Changing your password
the easiest way to change your password is to use the commondline program passwd.
you will be prompted to enter your old password, and then twice enter
you new password. In all three password entries, you will not see any
indication that anything is being typed. This is again an old style
security technique when security was considered more important than
Moving into a folder on the command line.
After you create the folder to do your project using konqueror, you
will need to move into that folder at the command line in order to
compile your programs using the command line compiler. use the 'cd'
command at the command line for that.
Lets assume that you have a folder called Project1 in your home folder. To move into that folder, you'll need to use
For editing programs several options are available. A very simple
approach is to use xemacs to edit your programs and then use the
command line to compile your program. Start xemacs with
it will look something like the image below. Note that though the image
below shows c++ syntax highlighting xemacs, like most code editors will
do proper syntax highlighting for all of the languages that we are
using this semester.
Moving files onto and off of csdev01
I recommend that you use winscp
move files to and from the server if you do part of your work on
another machine. It will give you a nice GUI interface for moving files
from one machine to the other.
Once you install winscp, you can either choose an exploror like
interface and drag and drop between the winscp remote window and your
local windows explorer windows, or you can use the commander like
interface (shown in the images below) which will keep both the local
and remote folder views in the same split window.
Login normally, there is no need to change anything except the host
name, your csdev01 username (which will not be as nice as mine
unfortunately) and your password.
Finally you will see something like this if you are using the commander-like interface: