how to repeat trial?

[He Dan <hdan@dislab.nju.edu.cn>]

I want to do many trials of ex/simple.tcl.
Write a shell or TCL script?

I write some lines as follows:

for {set i 0} {$i<10} {incr i}  {
exec ns simple.tcl .. ..
}

It is only once to be run.
How i can do?

funny

Dan