How to run multiple command in one line and some commands in background at the same time?

Question

I know I can use & at the end of a command to make it run in background and && to connect multiple commands at the same line. However, when I use them together it seems not work. Below is an example.

json-server --watch db.json & && python -m http.server 7777

The error message is:

bash: syntax error near unexpected token `&&'

Is it possible to make them work together? Thanks.

Answer 1

It seems you want this

json-server --watch db.json & python -m http.server 7777

The && is not to connect multiple commands at the same line, that is ;. The && is a logical AND. You can't use an AND if you don't wait for the command to exit.