check for double domain using chef

check_double_domain_chef.sh

#!/bin/bash
# (C) 2012, Kameron Kenny
# ExactTarget

nl(){
  echo ""
}

print_help(){
  nl
  echo "Usage: $0 -n x.x.x -d domain.local"
  nl
  echo "Arguments: "
  echo "  -n | --net) x.x.x - First three octets of network address"
  echo "  -d | --domain) domain.local - will be turned into domain.local.domain.local"
  echo "  -e | --chef-environment) sets the chef environment and uses knife to search"
  echo "			     for nodes in the specified environment.  Then it"
  echo "			     will attempt to set the IP and Domain to use from"
  echo "			     the chef server."
  echo "			     Do not use -n or -d arguments when specifying -e, "
  echo "			     they will be ignored."
  nl
}

if [[ -z "$1" ]]; then
  print_help
  exit 1;
fi

while [[ -n "$1" ]]
do
  case "$1" in
    -h)			print_help; exit 0;;
    --help)		print_help; exit 0;;
    -n)			network=$2; shift;;
    --net)		network=$2; shift;;
    -d)			d=${2}.${2}; shift;;
    --domain)		d=${2}.${2}; shift;;
    -e)			chef_environment=$2; shift;;
    --chef-environment) chef_environment=$2; shift;;
    *)			print_help; exit 0;;
  esac
shift
done

if [[ -n "$chef_environment" ]]; then
  echo 'wait=long; while [ "$wait" -eq "long" ]; do get(beer); done'
  nl
  nodes=$(knife search node "chef_environment:${chef_environment}" -a name | awk '{ print $2 }' | grep -v "items")
  for i in ${nodes}; do
  echo "Searching for ${i}"
  domain=$(knife node show ${i} -a domain | awk '{ print $2 }')
  d="${domain}.${domain}"
  ip=$(knife node show ${i} -a ipaddress | awk '{ print $2 }')
  cmd=$(nslookup ${ip} | grep "${d}")
  echo "Checking ${ip} for ${d}..."
  if [[ -n "$cmd" ]]; then
    echo "${ip}"
    echo "----------------"
    nslookup ${ip}
    nl
  fi
  done
echo 'wait=over; if [ "$wait" -eq "over" ]; do empty(beer) && get(backToWork); fi'
exit 0
fi

if [[ -z "$d" ]]; then
  echo "ERROR: You need to set a domain to be checked..."
  print_help
  exit 1;
fi

if [[ -z "$network" ]]; then
  echo "ERROR: You need to set a network to check..."
  print_help
  exit 1;
fi

for i in {1..254}; do
  ip=${network}.${i};
  cmd=$(nslookup ${ip} | grep "${d}")
  if [[ -n "$cmd" ]]; then
    echo "${ip}"
    echo "----------------"
    nslookup ${ip}
    nl
  fi
done