[ns] NS-2.30 installation-How to add library paths?

[Syed Faraz Hasan]

Hi everyone!

I installed NS-2.30, I received followin messages after ./install

1) You must put /home/faraz/Desktop/ns-allinone-2.30/otcl-1.12, /home/faraz/Desktop/ns-allinone-2.30/lib,
into your LD_LIBRARY_PATH environment variable
If u r using csh,
        setenv LD_LIBRARY_PATH <paths>
if u r using sh,
        export LD_LIBRARY_PATH=<paths>

2) You must put /home/faraz/Desktop/ns-allinone-2.30/tcl8.4.10/library into your TCL_LIBRARY environment

I don't know how to add these paths. Can some one please show me how to do it.
I am using open suse 11, have no idea about csh or sh!

Your early response shall be highly appreciated.

In desperate need of help.
Faraz