local_vs_remote_packet_loss.sh

# Compare packet loss to two destinations
# Works on macOS

(while true ; do 
  date
  ping -c 1 192.168.1.1 
  date
  ping -c 1 1.1.1.1 
  sleep 1 
done) \
  | egrep --line-buffered '(packet loss|GMT|ping statistics)' \
  | sed -l 's/% packet loss//' \
  | sed -l 's/^1 packet.* //' \
  | sed -l 's/--- //' \
  | sed -l 's/ ping statistics ---//' \
  | paste -d , - - -