pong.sh

#!/usr/bin/env bash

ip_address=$1

trap 'echo -e "\n... $1 pong statistic ...\n$pong_tot pong transmitted, $pong_ok received, $pong_ko loss;\n"; exit' INT

if [ -z "$1" ]; then
    exit 0
fi

clear
echo -e "PONG: $1 ( $ip_address )"

while true
  do
    DATETIME=$(date)
    if [[ ${DATETIME} == *:00\ * ]]
    then
      echo -e
      echo -ne ${DATETIME}
      echo " Pinging $1"
    fi
    $(/usr/bin/ping -c 1 -i 1 -w 1 $1 -q 2>&1 >/dev/null)
    RET=$?
    if [ ${RET} -eq 0 ]; then
      echo -ne '!'
      let pong_ok=$(($pong_ok+1))
    else
      echo -ne '.'
      let pong_ko=$(($pong_ko+1))
    fi

    if [ -z "$pong_ko" ]; then pong_ko="0"; fi
    if [ -z "$pong_ok" ]; then pong_ok="0"; fi

    pong_tot=$(( $pong_ok + $pong_ko ))
    sleep 1
done

echo ${#RET}