compareTTFB.sh

# Send in urls as arguments, this
# script will loop over the arguments and do 100 request to each url
# it will report the Average time to first byte for each site.
LOOP=100;
for SITE in "$@"
do
  echo "Requesting $SITE $LOOP times ...";
  SUM=0;
  for i in $(seq 1 $LOOP)
  do
    TTFB=`curl -o /dev/null -w "%{time_starttransfer}" $SITE 2>/dev/null | sed 's/,/./'`;
    echo -e "$i: $TTFB";
    SUM=`bc <<< "$SUM + $TTFB"`;
  done;
  echo "Average TTFB for $SITE after $LOOP number of times is `bc <<< "scale=3;$SUM/$LOOP"`))";
done;