How to run multiple Bash commands in parallel

If you’d like to run multiple commands in shell which is executed one by one, you can simply type:

What if you need to run all these jobs in parallel. When you have just single command you can add & and the command will be executed in the background. So the temptation for a solution might be:

Well, it does not work. The correct solution for oneliners is simple. Just replace ; by &

The same solutions works also for other shells like zsh.