Bash & (ampersand) operator

Question

I\'m trying to run 3 commands in parallel in bash shell:

$ (first command) & (second command) & (third command) & wait

The prob

Answer 1

This might work for you:

parallel -j3 --halt 2 

This will run 3 commands in parallel.

If any running job fails it will kill the remaining running jobs and then stop, returning the exit code of the failing job.