watch function with expanded alias

watch.sh

watch1 (){
  firstArg=$1
  shift;
  rest=$@

  resolvedCmd=$(alias $firstArg 2>/dev/null | cut -d\' -f2)

  if [ -z "$resolvedCmd" ]; then
        resolvedCmd=$firstArg
  fi

  watch -n 1 "$resolvedCmd $rest"
}