Ping with timestamp and threshold.

ping.sh

#!/bin/bash

COUNT=450
INTERVAL=2
THRESHOLD=5

print_usage () {
  echo "Usage: ./ping.sh [-h] [-c count] [-i interval] [-t threshold] -d destination"
  echo "  -h|--help        :  Print usage."
  echo "  -c|--count       :  Number of pings to send. Default 450."
  echo "  -i|--interval    :  The interval in seconds between each ping. Default 2."
  echo "  -t|--threshold   :  The threshold to show ping results in milliseconds. Default 5."
  echo "  -d|--destination :  The destination host."
}

while [[ $# -ge 1 ]]
do
  key="$1"
  shift

  # Case through the flags
  case $key in
    -h|--help)
      print_usage
      exit 1
    ;;
    -i|--interval)
      INTERVAL=$1
      shift
    ;;
    -c|--count)
      COUNT=$1
      shift
    ;;
    -t|--threshold)
      THRESHOLD=$1
      shift
    ;;
    -d|--destination)
      DESTINATION=$1
      shift
    ;;
    *)
    ;;
  esac
done

if [[ -z "$DESTINATION" ]]
then
  echo "ERROR: You need a destination to ping using the -d flag."
  print_usage
  exit 1
fi

ping -i $INTERVAL -c $COUNT $DESTINATION | awk '$8 ~/^time=/ { gsub(/time=/, ""); if ($8 > $THRESHOLD) print strftime("%Y-%m-%d %H:%M:%S")"\t"$0; }'