expect scrits exits before excuting without interact

[madhavbhamidipati]

Hi

I see the following behaviour for the piece of code given below:



:
:
set def_router_cmd {def_router=`route -n | grep ^0.0.0.0|awk '{print \$2}'`}
set pingcmd {ping -c 3 $def_router}

send "$def_router_cmd\r"
send "$pingcmd \r"
puts "The output is '$expect_out(buffer)'."
#interact


Now output is nothing as commented out 'interact'

Can anybody tell why it is not executing the commands?

regards,
Madhav