async bash example

async.sh

#! /bin/bash

cust_func(){
  echo "Do something $1 times..."
  sleep 1
}

# For loop 5 times
for i in {1..5}
do
  sleep 5 &
	# cust_func $i & # Put a function in the background
done

jobs

## Put all cust_func in the background and bash
## would wait until those are completed
## before displaying all done message
wait
echo "All done"