Requires
$ bash bw-test.sh example.com 5202 # do a bandwidth test to example.com on port 5202 that is running `iperf -s` (leave port blank if default)
$ while true; do bash bw-test.sh example.com 5202; sleep 1; done # this is an example of constantly running `iperf` test
$ bash aplot.sh # plot everything
$ open -a "Google Chrome" example.com_2015-12-27_wlp4s0.svg