OK.
So as I mentioned in the last video we're going to do a really quick activity where you're basically
going to try experimenting with these three commands and enter them into the mosque.
Well.
So if you stopped it if you quit.
Make sure that you open it back up using the this command and then try running these one at a time and
just see what happens.
So puzzle video if you'd like and do that and then come back and in a few seconds we'll go over what
happens.
All right.
So let's start with the first one.
Help.
So I'm going to clean up my terminal here just by using the clear command.
Then I'm going to access the Seelye.
I'll just use the up arrow.
So now I have this Selye command line interface ready for me to type some commands.
So I will do that first one which is help and you can see we're actually prompted to type that.
So when I hit enter all it does is give me a list of commands of things I can do.
You can see you've got things like clear help which you just used print prompt.
We've got quit which we already used as well.
Basically it's just a list of things that you can do as you can see we can also try help contents
and we basically get a list of categories that we could access.
So if we wanted to know more about let's just pick one of these at random.
Don't worry let's try data types.
We can do help data types and it kind of dives down further and gives us information about what those
are.
We haven't talked about data types so don't stress about that.
The next command to try is show databases.
So we'll come back to try that show data bases
and it gives us this nice little representation here of the current databases that we have in this instance
of my as well.
So we haven't talked about how you make a new database you might be wondering what's going on.
There's already five of them here.
All of those were created automatically when we created this minuscule instant.
So don't worry it doesn't really matter what they are right now but they're there automatically.
There are five different databases in the next section we'll actually talk about what a database is
when you create a new database why you create a new one when you use the same one but just wanted to
show you this command because you'll be able to use it in the future when you create a new database
and you want to make sure it worked.
You can type show databases and you should see a new one added below.
And the final command here is select at at hostname.
This is also kind of a weird one that most likely you will never type after this but I just wanted to
show it to you not because it's something you need to do but just it's something that you can do quickly
and immediately and all of this here is just to illustrate the point that the Selye works by you typing
commands.
Hitting enter and getting some text back.
So that process over and over and over here tells me that my hostname is this string here basically
am I using my user name.
Yours will be different depending on your workspace and your user name.
So as I mentioned it's honestly not important what it is or why it's there at this point but I just
wanted you to see that you can type these commands in and get something back out.
So that's it for this really quick kind of silly exercise.
But in the next section we're going to start actually learning as all commands.
So you'll be able to start interacting immediately creating databases creating new tables adding data
into those tables and it gets a lot more interesting there I promise.