concur.sh

#!/usr/bin/env bash

trap outdirty SIGINT SIGTERM

function out() {
  echo "out, cleaning up"
}

function outgood() {
  echo "success"
}

function outdirty() {
  echo "got killed"
  out
}

function outfail() {
  echo "got fail: $@"
  out
}

function j1() {
  { for i in {1..5}; do echo j1: $i; sleep 1; done && echo "stage j1"; } || outfail "j1 sad" $?
}

function j2() {
  { for i in {1..5}; do echo j2: $i; sleep 1; done && echo "stage j2"; } || outfail "j2 sad" $?
}

function j3() {
  { for i in {1..5}; do echo j3: $i; sleep 1; done && echo "stage j3"; } || outfail "j3 sad" $?
}

{ j1; } &
{ j2; } &
{ j3; } &

wait

outgood