Ping multiple hosts and extract the average ping time

multiple_pings.sh

function do_ping(){
  echo $1
  ping -c 4 $1 | tail -1| awk '{print $4}' | awk -F '/' '{print $2}'
}

declare -a arr=("google.com" "facebook.com" "linkedin.com")

for i in "${arr[@]}"
do
  do_ping "$i"
done