Right now, let's talk about the environment, maybe now the environment where they are just a very
big but for the system.
So you saw that directory or their breath for the Java interpreter, the compiler, compiler, python,
interpreter, whatever.
OK, so the difference between variable and environment variable is that the environment where they
are for this is not just a symbol or a normal variable.
OK, so to show all the variables, we would use the command in our environment.
So in here you can see it will show us all everything we have.
So they should live in the loop.
Name that, as you can see, the search to order.
OK.
Now, here are some of the tips I want to mention is that the behavior of the you are using so depends
on that.
You need to know where to define your environment variables.
So, for example, if you are using as such, you need to define your environment.
We been in the Loganville should Beth.
So like the profile.
So either the did provide the best the place that provides or to provide in the directory of the user,
the home director of the user, which is open to like this.
As you can see here, you need as you can see, if you read and see, executed by command interpreter
for locations.
So these are looking at or the locations.
OK, so that's for a specific user.
So you created user test and you created this file.
So all the environment value defined here, by the way, defined and given where there is no big deal,
I will show you right away.
Don't worry.
OK.
So if you define event environment variable here in the test to provide file only this this user will
have this environment very but not the whole system.
But for the whole system, you will use that the best ATC profile.
OK, so using any of them ATC profile and here this is the profile fight for the launches.
For the whole system.
Yeah.
As you can see, it is a system.
Want to provide for the burn --.
OK, so actually this is for the best, not for orchard's.
So if you are using digital it will be something else.
ATC provided D or whatever.
OK, or ATC as profile.
OK, so it depends on the shell you are using or the definition you are using.
So if it is a abortion now this is the case, you need ATC profile.
OK, now sometimes it is ETSI environment, so that's like this ATC environment like this.
And hear about the environment variables like a one.
As you can see, this is some examples, the name of the environment variable and it is Capitán equal
and in double quotation, whatever you want.
So it is a key value bill.
Nobody.
OK, and after you add, you want the thing you want, either you can quit from the shell and open it
again, or using this command, which is the source command, ATC environment or ATC provider, in order
to provide find the path to that file you have entered or type your environment.
But so sort this like this and it will be here.
So, for example, let's put anything just arbitrary in the environment, for example, X1, yeah,
by the way, I forgot to open it as a studio because it is only so pseudo like this, like we learned.
And here, don't worry about the wind, we will talk about it.
So x1 equal best for example.
OK, so let's quit from the from here and if I type source the ABC environment.
And if I type in, it is not found, maybe I need to run the pseudo command here.
OK, sometimes this happens because they are using the POSIX or something like that.
Anyway, we can use the document.
OK.
And, by the way, did not vote.
OK, so we can use a pseudo dash and then wait for it, and if I type in this time again, you can see
that X one is found now.
OK, so X one equals this.
And why this happened?
Because we quit from the shell and we opened it again.
OK, so nobody which is the bastion, I mean.
All right.
Now again, maybe why this didn't work using the source comment, actually, because it is something
for the whole system and you are using the Ubuntu user, which is something not very powerful at the
root.
So if you type it on your profile, it depends on the user you want.
You would find it there and it will work 100 percent.
All right.
Thanks for watching.