For the people.
Because gTerminal is hard for others, I made this as a guide to others, and due to the owner's absence, I can't call it official. So, let's start.

On starting up your new computer, you will see the text:
Initializing boot sequence.
Finalizing Primary Boot Computing System.

Welcome to gTerminal!
To list all commands, type :help
Now, this seems pretty simple. Just type in ":help".

引用自 Tip：

The prefix for commands is ":". Remember this when typing in commands!

Now, you will see four commands. One you already know.

• :cls
  
• :help
  
• :os
  
• :x

I will cover over :x and :cls in the next part, but now, all we need is :os.
Typing in :os will prompt two commands.

• :os list
  
• :os install

Type in :os list to see a list of OS's.
There should be two OS's appearing.

1. Personal
   
2. Server

With these, type in ":os install" and then the OS.
For now, we will do Personal, so type in ":os install pesonal" (alternatively, you can type in ":os install server" to install the server OS, which is covered later).

引用自 Tip：

To exit the terminal without shutting it off, press the "enter" key until your mouse unlocks.

Personal.
The operating system for your personal needs.
Congratulations. You just installed your first OS, and these should be what greets you (besides the ":help" message and "Welcome to gTerminal").
Now, as usual, type in :help.
As you can see, there are more things added to the help list.
The new ones being:

• :f
  
• :gg
  
• :gid
  
• :gnet
  
• :isp
  
• :math
  
• :setpass
  Some sound scary, but don't fear, they're easy to learn.
  Let's start with :f.
  Typing in :f will prompt you with 7 commands.
  
  • :f ndir
    
  • :f r
    
  • :f d
    
  • :f w
    
  • :f chdir
    
  • :f l
    
  • :f rd
  Some names also sound scary, but as I said above:
  

  引用自 Denneisk：

  Some sound scary, but don't fear, they're easy to learn.

  Let's do the most simple here:
  :f w
  Doing that will say Invalid name!.
  If you hadn't read, :f w is to write a message. What you have to do is type ":f w <Title> <Message>. It's easy as that.
  

  引用自 Tip：

  Titles can't contain spaces. Use the underscore "_" to make spaces. However, messages can use spaces.

  Next, after you made a message, type in the next easiest; :f l.
  :f l will show the name of your written document. Why so? Because :f l shows the objects in the directory. Simple enough.
  Now, :f rd is very useful for your message. Why so? Well, it makes you read it. "rd" standing for "Read", typing :f rd <Title> will open the text document of that title.
  That's really simple, just like :f r which renames files. Typing in :f r alone outputs Unable to find file/directory!. To fix this error, type it like this:
  :f r <Title> <New Title>
  :f d Deletes text files. That's easy.
  

  引用自 Tip：

  Titles are case-sensitive, so if you accidentally get an uppercase for lowercase, it won't register.

  Now, some trickier ones:
  :f ndir
  :f ndir will prompt you with Invalid name! like :f w.
  But unlike :f w, :f ndir only needs a title. Typing in your title, then typing in :f l will show the new directory that you made (Whatever it's called).
  :f chdir is very useful for :f ndir, because it makes you change to the directory by the name. Simple.
  Now, we're done with the :f section, let's go to :cls.
  Very simple command.
  Typing in :cls clears the screen.
  

  引用自 Fun Fact：

  Typing "cls" in a Windows command prompt clears the prompt, aswell.

  Now, :gg.
  :gg is like a game, where you have to guess a number from 1-10 and see if you get it right.
  Simply type in :gg and then a number from 1-10.
  :gid is very useful for the next command, :gnet.
  :gid shows your terminal ID. Seems useless? Well, let's go to the next one.
  :gnet. Upon typing in :gnet, you are shown with 5 more commands, like :f.
  :gnet j makes you join a network. To do this, type in ":gnet j <network> <optional password>".
  The rest will be kept until next section.
  :isp. Upon typing, it shows the initial command.
  :isp s. Typing this in with no parameters gives you Invalid input for user ID!
  Remember that useless :gid command? Well, if you set up another computer, type in :gid, and get the ID. Now, send over your file by doing
  :isp s <ID> <File>
  This is the slow way of communicating. It's like Early 2000's texting, but this is useful for sending logs.
  :setpass Sets your password. Simply do :setpass <Password> to do so.
  :x Turns off the computer. Easy.
  Now, the finale.
  
  Server OS
  SERVER
  -OPERATING SYSTEM V1-
  Welcome to your server computer!
  This is somewhat, but barely different from Personal, so read that if you haven't, because I won't cover over those.
  The main difference of server is :gnet.
  Typing :gnet shows everything similar but one thing.
  :gnet j is replaced with :gnet c. Typing :gnet c off the bat reports Invalid input for network!. Typing in :gnet c <Title> creates a network! Congratulations! You made your first network!
  

  引用自 Tip：

  Typing in :gnet c <Title> <Password> will create a network with a password. Good for police/security networks or private communication.

  :gnet l Makes you leave a network. If you're on server, it removes the network.
  :gnet ls Lists all the other networks including yours.
  :gnet lu Shows the users (Or at least the IDs) in the network you're in.
  :gnet m is like :isp, but it's more of modern-day texting.
  When connected to a network, type in :gnet m <ID> <Message> and it's sent to that ID. You can even send to yourself.
  

  引用自 Tip：

  Message the whole network by doing :gnet m @ <Message>. Good for updates.

  引用自 Extra Tip：

  Shutting off a computer with a server online shuts off the server. The only way to keep a server online is to keep the computer online. Type in :cls just so private info doesn't leak.

  Conclusion
  This was my first serious post, and I don't even know if it will work right, but whatever, I tried.
  Thanks for reading. Friend me and send me a message referring to this post if you need help.