#!/usr/bin/env bash

check_if_failed() {
  local _status="$1"
  if [ ! "$_status" = 0 ]
  then
    echo "FAILED!"
    exit 1
  fi
}

pids=()

for host in $hosts
do
  ssh -o ConnectTimeout=2 $host "
set -e
which parallel
sleep 1
" &
  pids+=("$!")
done

for pid in "${pids[@]}"
do
  wait "$pid"
  check_if_failed "$?"
done

echo "All is good!"
exit 0