How do you run multiple programs in parallel from a bash script?

Question

I am trying to write a .sh file that runs many programs simultaneously

I tried this

prog1 
prog2

Answer 1

I had a similar situation recently where I needed to run multiple programs at the same time, redirect their outputs to separated log files and wait for them to finish and I ended up with something like that:

#!/bin/bash

# Add the full path processes to run to the array
PROCESSES_TO_RUN=("/home/joao/Code/test/prog_1/prog1" \
                  "/home/joao/Code/test/prog_2/prog2")
# You can keep adding processes to the array...

for i in ${PROCESSES_TO_RUN[@]}; do
    ${i%/*}/./${i##*/} > ${i}.log 2>&1 &
    # ${i%/*} -> Get folder name until the /
    # ${i##*/} -> Get the filename after the /
done

# Wait for the processes to finish
wait

Source: http://joaoperibeiro.com/execute-multiple-programs-and-redirect-their-outputs-linux/