The last thing I want to show you is how to use and
access the about topics in PowerShell.
They're a very useful tool for getting information about how PowerShell works.
Let's say that you want to know about aliases in PowerShell.
So you can ask PowerShell, hey, help with alias as the text you're looking for.
You could put it in wild cards if you want, and we get our listing there.
I can see that there are two about topics there at the end.
Let's look at that about_Aliases.
So to help about_Aliases, and this now brings up the help topic.
Help topics generally follow this format.
There'll be a short description, think of it like a synopsis, if you will.
Then there'll be a longer description, and you can page through,
and you may see additional subheadings like BUILT‑IN ALIASES here,
and ALIAS CMDLETS, and so on,
but there's lots of information here that you can scroll through
and read to learn about a particular topic,
such as aliases, or switches, or if statements,
or all sorts of things that you can find in PowerShell.
If you scroll all the way through to the end, you'll see some links there.
Now they're links only in the sense that you can do help about_profiles,
or _providers, or the command list here,
so you do help New‑Alias, if you want to see how to create a new alias.
All the about topics all start with about_,
and then if you want to see all of them,
let's just put in a wildcard there,
and as you install additional modules or install other products,
you might get additional about topics,
so your list may vary from what I have here,
but you can see there's lots of topics there that you can go through,
and you can read about and learn lots of things about PowerShell.
Now remember,
I showed you a little bit ago the ShowWindow, this also works for
the about topics, may not always pop up. So here is the about topic,
it makes it a little bit easier sometimes to read, again you can
scroll through and look at this.
You may occasionally see some texts that's a little garbled or mangled,
again there's really nothing you can do about that.
That's just an artifact from the help file itself.
Alright, so let's close that. That is kind of a quick look at the about topics.
One thing about the about topics I'll show you here is that
they are, Tab completion does work for them.
So if I do help about_S, and now hit Tab,
it will cycle through and show me all of the about topics. So that can also be a
helpful little trick in your PowerShell tool belt. Alright,
I think that gives us a good handle on using the help system,
updating it, finding help using the help function, or get help, the about topics. Let's go back to the slides and wrap up this module.