Question: So let's say we open an app on ubuntu with terminal. e.x. 

```
user$gnome-photos

```

there will be displayed some text with different information about the app events and etc.(i think)and since this is displayed, you cannot run another command , until you terminate the app.
Is there any way to bypass this and be free to type anything other while the app you launched before , is still runninb ?

Answer: 
Yes. Run `gnome-photos &` in the command line to spawn it in a child process or `(gnome-photos &)` to spawn it in a new process.
You can simply put an `&` at the end to put the app in the background:

As in: 

> 
> user$ gnome-photos &
> 
> 
> 

Once that's done you can "disown" the job.

> 
> user$ disown %1
> 
> 
> 

`%1` is the *job specification*, you type it as is.