Script that takes varnish stats and writes out a log-like file

varni.sh

#/bin/bash -l
function get_stats {
  (
    echo "stats"
    echo ""
    sleep 1
    echo "quit"
  ) | telnet $1 6082 2>&1
}


STATS=`get_stats $1`
V_HITS=`echo "$STATS" | grep "Cache hits" | grep -v "Cache hits for pass" | awk {'print $1'}`
V_PASS=`echo "$STATS" | grep "Cache hits for pass" | awk {'print $1'}`
V_MISS=`echo "$STATS" | grep "Cache miss" | awk {'print $1'}`
let V_TOTAL="$V_HITS+$V_MISS"
let V_RATIO="$V_HITS*100/$V_TOTAL"

echo "HITS=      $V_HITS"
echo "MISS=      $V_MISS"
echo "HIT_RATIO= $V_RATIO%"
echo "PASS=      $V_PASS"