Maemish...
First you have to understand a couple of things...
The folks you are frustrated at for telling you to "go root"...
Are primarily saying this because if you are using linux ...even as a newbie...
Terminal is a given ....they are expecting you know the most basic of basics.
Especially how to do the most basic first thing.
How to enable administrative privileges...in terminal so you can execute the most basic commands you may know.
As well the same folks telling you "go root"...
Are being helpful without confusing you.
There are many many versions of linux.
Not everyone uses the same distro.
They are being helpful in not misinforming you with information that isn't valid for your distro.
With some distros ...the command to get those administrative privileges is "sudo su" (the "su" standing for "super user")...some it is a variation of that ..
Some are vastly different...
It just happens that for maemo...it is "sudo gainroot".
The folks offering their help in part expect you to know the basic of basics...considering the level of sophistication and complexity of the issues, problems and tasks you are openly sharing ...
They figure you must know the most fundamental basic as getting superuser privileges ..
this is their faultless assumption from info you have given...
That you are far more advanced than you really are.
And if asking someone else's help outside of maemo community....(I don't know if you have or not...but if you have...) then they are being equally polite and informative by saying "go root" ...and so not confuse you with their particular distro's method of gaining superuser privileges ...that is not your distro's method.

As far as help goes..
You are frustrated with the linux books you have that I am sure seem dry, overwhelming with all the stuff you do not instantly need to know right away..and is too much to absorb ...and so forgotten by the time you have read through a book.
Also flipping through books hunting for references you know you just read...is also time consuming..and can be frustrating ..

Also from your response...as well... you are frustrated with the help folks have offered honestly...
And you are frustrated at future help and responses from others ...
And warn folks of their potential to become equally frustrated as you...
Such as it is gleaned from your last statement.

Specifically for you...
The 2 best folks who , for sure can give you exactly the help and advice you need ...
As you require it ...when you require it ...who never get frustrated ...and are always happy to help....with no judgement..and always explain things in the easiest way possible.....that meets with all your requirements..
One goes by the name of "Google"
And the other "Youtube"

It may seem I am joking or being sarcastic.
But really I am not.
Considering all you have said in your last post.
The best method of learning for you ...
Is googling exactly what commands or output you are having difficulty understanding. Likewise googling things like what is var?
What is a lib? What is a dir? How do they function? Will get you answers in whatever format works for you...verbose and lengthy with explanations and examples...to short and sweet.
As far as youtube goes ...it also is a good teacher ...there are tons of folks who have done excellent tutorial videos.

There are other places on the web...not as famous ...that can help as well...but google and youtube are likely to help you the most.

I said it a long time ago to you Maemish...
Take your time...
Stop trying to take an elevator from the ground floor to the penthouse ...without first going room by room ...floor by floor and taking the stairs first...
So you know the entire layout of the building ...

You got far far ahead of yourself.
I am not saying you are not capable ...or are not smart.
Another parallel would be..
...that everyone wants to know immediately how to turn on a light switch....and when shown...becomes frustrated at the fact they don't understand how the light switch works...

So you want to know...
And with a list of personal requirements, and expectations from others to boot.
Google and Youtube ...
The best possible teachers, are just waiting for you...and ready to give you all you want at the speed and level of sophistication you can handle...day or night...at your beck and call.

I have used them both...
Still do...often...for complex issues and problems I need help with...that elude me...and so need help from someone who specialized in just that particular problem...

One of the best things about those 2 sources is that....
If one person explaining something...just doesn't make sense to you....there are hundreds more with articles ...suggestions and viddeos ...explaining the exact same thing ...in a way that will make sense to you.

So there is my best help for you Maemish.