Plot a graph of node energy from NS2 trace file

use the below awk script to find the energy of node

#!/usr/bin/awk -f
BEGIN{
#print "energy of node 1"
data=0
}

{
if ($1=="N" && $5==0)
{
    print $3,$7
}
}
END{
#print "Completed"
}

save this file as energy.awk

in terminal type

$gawk -f energy.awk "yourtracefile.tr" > node0.dat

on executing this command you'll get a file node0.dat

in terminal

$xgraph -P node0.dat

you'll get a graph