gnuplot.gnu

#Use the testping.sh script to retrieve the times of a Pings 

#Then use the following script to plot it with gnuplot

set terminal pdfcairo font "Gill Sans,9" linewidth 2 rounded fontscale 1.0
set output "ping.pdf"
set ylabel "Time in milliseconds"
set xlabel "Number of Pings"
plot "pingTimes.dat" w lp 

testping.sh

#!/bin/bash   
ping -c 100 google.com | gawk -F= 'NF>1{print $NF+1;fflush()}' | tee pingTimes.dat