Check host

#!/bin/bash
WAIT="-w 1"
while getopts H:w: opt
do
   case $opt in
       w)
        WAIT="-w $OPTARG"
        ;;
       H)
        HOST="$OPTARG"
        ;;
   esac
done

if ! test -z "$HOST"
then
 if ping $WAIT -c 1 -q $HOST > /dev/null
  then
   echo "$HOST OK"
   exit 0 
  else
   echo "$HOST FAILED"
   exit 2
 fi
else
echo "$HOST PARAMETER MISSING"
exit 3
fi