Ping multiple hosts and sort result by avg duration

ping_zattoo.sh

#!/bin/bash
#script to ping multiple websites
#add websites you want to ping to the websites.txt file
#the output will be saved into results.txt

websitesFile=websites.txt
websiteList=$(cat  $websitesFile |tr "\n" " ")
websites=($websiteList)
outputFile=results.txt


printf "Pinging %d websites from %s\n" "${#websites[@]}" $websitesFile


for i in "${websites[@]}"
do
        ping -c3 -q $i \
          | grep rtt \
          | awk -v host="$i" '{split($4, a, "/"); print host,a[1]}' \
          >> $outputFile
        echo Ping sent to "$i"
done

echo "Most fastest 10 websites are:"
echo '----------------------------'

sort -nk2 $outputFile | head -n 10

exit 0