sshconfgen

#!/bin/zsh

cat ~/.ssh/conf.d/*/*.sshconf >! ~/.ssh/config

grep -ioE 'Host[nN]ame (.*.local)' ~/.ssh/config | uniq | sed 's/\(Host[nN]ame\) \(.*\)/\2/g' | sort | uniq | while read domain 
do
  check=`arp $domain 2> /dev/null`
  if [[ $? = 0 ]]; then
    ip=`echo $check | sed 's/.*(\([0-9]*\.[0-9]*\.[0-9]*\.[0-9]*\)).*/\1/'`
    regex='s/\(Host[nN]ame\) \('$domain'\)/\1 '$ip'/g'
    sed -i '' "$regex" ~/.ssh/config
  fi
done