yes, you will have to type
devel-su
and the default root password
to get root rights. Then type the second line as stated. And yes, its a space and a 1. The $ indicates that this is a terminal command. You newer will have to type this.

Beside of all of that, I strongly suggest you not to play around with commands like "devel-su". You can harm more than you can fix if you are inexperienced!
If you modify the wrong files, your phone will get locked and you will have to reflash it, meaning to lose all your data and having quite some work ahead.