[ns] A simple question

[Sencun Zhu <szhu1@ise.gmu.edu>]

Hi,all, I want to use gdb to debug ns , while ns needs my tcl file , say
main.tcl, and gdb only take one parameter usually,

so I need to run 
gdb ns
%              ( what command should I use to load main.tcl, how can I get
help from ns environment?)


thank you.