when I run follow command as normal user everything works correctly:

```
fabio@myclient:~$ rsync -rv myserver:~/backup /home/fabio/backup/

```

It works without any user interaction, but I need to run in a script executed as root so I tried:

```
root@myclient:~# sudo -u fabio rsync -rv myserver:~/backup /home/fabio/backup/

```

and also tried:

```
root@myclient:~# su - fabio -c "rsync -rv myserver:~/backup /home/fabio/backup"

```

both works but ask me a "passphrase for key", can I avoid it?