for-krainbolt.sh

#!/bin/bash

a () {
  sleep 1
  echo a
}
b () {
  sleep 1
  echo b
}
c () {
  sleep 1
  echo c
}
d () {
  sleep 1
  echo d
}
e () {
  sleep 1
  echo e
}

a &
wait $(jobs -p)
b & c & d &
wait $(jobs -p)
e &
wait $(jobs -p)

Output:

{pause}
a
{pause}
b
c
d
{pause}
e