ping6log.bash

#!/bin/bash
 
function usage ()
{
  echo "Usage:"
  echo "    $0 <IP6>"
  echo "OR"
  echo "    $0 <IP6> | tee mylog.txt"
}
 
if [ $# -ne 1 ]; then
  usage
  exit 127
fi
 
IP=$1
 
while :; do ping6 -c 1 -W 1 $IP >/dev/null || date; sleep 1; done