Http log

#!/usr/local/bin/bash
n=$#
if [ $n -gt 1 ]; then

  date=$1
  format=$2

   case "$format" in
    1) zcat $date/http.* | gawk '{print strftime("%Y-%m-%d %T", $1),$3,$9$10}'
    ;;
    2) zcat $date/http.* | gawk '{print strftime("%Y-%m-%d %T", $1),$9}'
    ;;
    3) zcat $date/http.* | gawk '{print strftime("%Y-%m-%d %T", $1),$3,$9}'
    ;;
    4) zcat $date/http.* | awk '{print $9}' | awk -F "." '{print $(NF-1)"."$NF}' | sort | uniq -c | sort -r | awk '{print $2,$1}'
    ;;
    5) zcat $date/http.* | gawk '{print strftime("%H:%M", $1)}' | sort | uniq -c | awk '{print $2","$1}'
    ;;                                                                                                                
    6) zcat $date/http.* | gawk '{print strftime("%Y-%m-%d %T", $1),$9}'
    ;;
  esac

else
   echo
   echo "Usage: $0 <date: 2001-08-18> <format: 1 - 6>"
   echo
fi