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OK, Senator, we did bash let's go over Python basics, so Python is one of the most utilized scripting

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languages in that community, if not the most utilized.

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This is due to its simplicity and power because it's pretty much like almost like English kind of it's

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a little bit easier than the Bashkim thing is.

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And it's very, very powerful.

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You can literally do anything that you could imagine with Python.

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So it's very easy to pick up and it's going to drastically help you with your acting career, any career

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that you have in cybersecurity generally, because Python is used typically, you know, to automate

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processes, you know, in gigantic enterprises.

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And it's very, very valuable to know Python.

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So we're going to go over the basics.

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And since, you know, a majority of the experts that you're going to see are written in Python, being

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able to read it and, you know, know what's going on and how to modify it, it's going to be key.

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There are some basic Python syntax.

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So Python scripts in Lennix start similarly to the bad ones, except this time is going to say user

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in Python.

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That's going to tell the system to interpret this as a python script when it runs.

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So if you want to declare a variable here, which is variable name equals value, when X is variable,

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you just type the variable name.

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If you want to print something out on the screen.

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So he's an echo.

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In this case, we would use print and then we would put the parentheses signs and whatever text that

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we want to put inside of it.

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OK, so let's talk about creating functions in Python.

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So if you want to create a function, you start with def and then the function name with the provinces

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and then colon, and you would then start defining your function.

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And if you want to call the function in Python, you need a function name followed by two parentheses

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and of all the function.

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So if you want to create a function that actually takes in an argument, you would just do the naming

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of function and you will put the argument right there inside of the parentheses you would use that you

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would access that variable, you know, with the ARG one variable in this case because it was passed

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in in parentheses.

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And then as you pass on those parentheses, you would be able to use inside of that function.

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So, yeah, this just prints out.

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So this one principle, you know, you passed in and whatever the argument is right there.

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So all this function from the command line would probably look like function, the function name, and

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then you have the in parentheses and inside the quality will put my name.

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And that would be the argument that you passed in.

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So let's actually go and try this out.

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OK, so I'm going to do a new file.

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So the python peepy function.

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There we go.

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So let's start with our command.

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So is countersign at some point as viewers are so experienced, Python so now knows that this is a Python

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script.

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So A.F. and then our function name, let's say it is to you, just name, keep it simple and then our

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colon and then we're going to start to make our function.

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So it would just, you know, if we wanted to print something out, so.

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My name is Anthony.

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There you go.

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So that's the function right there.

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So then I would be able to call the function like this, you know, right away.

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So now we can do C.H. Mod plus X PI function and now we do dogpile function and say, my name is Anthony

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there.

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We created a simple function.

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OK, so let's say that we wanted to pass something into dysfunction.

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So we'll go up here and in parentheses, input, maybe name and we would take our name right here where

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we have it right now and we do plus name and then less.

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When we call the function we would actually, you know, probably want.

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So this Anthony.

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So now, right now, let's try to run it.

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That's slash PI function.

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My name is Anthony.

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There we go.

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So now we passed a function and we passed in something into Python.

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OK, so if you want to capture user input in Python, you would just set it up like a variable.

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So the variable name right here is user input.

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And then that method from Python is input, parentheses and then input is what is going to print out

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on the screen and wait for you to actually type in your input.

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And you can print this by printing the variable with the print command.

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That would be a lowercase period there as well.

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So now let's actually go over and try to do this, started new files of the PI input.

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So we're going to insert our common user in Python.

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So now that's a user's keyboard like it was in their user input equals input.

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I say insert your age and make sure we have parentheses around that and let's make sure that we spell

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input.

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Right.

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And then we're going to print.

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User input.

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There we go.

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So I was very quick siege mod.

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Plus x pi and put Bam that slash PI input and see your age.

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Ask me how old I am.

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Let's say I'm 28 because I am.

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Yeah now I'm 28.

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So now we know how to cash and put it in, print it out.

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OK, so just like Bashour and give you an example of a conditional statement in Python as well, similar

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to the other one.

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So in Python, this is how you would type this.

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You would say, you know, if for example, five is greater than 10, you print out, five is greater

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than 10 in text or else print five is less than 10.

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So in that case, is it five is not greater than 10.

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You're going to print out five is less than ten, which makes sense because five is less than ten.

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So this is otherwise a little bit simpler when it comes to, you know, making the conditional statement.

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So you kind of seeing that python is very simplistic in a way.

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So now let's talk about for loops.

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So this is another iterate through maybe lists of different things.

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So like for this example, right here, we have a list right here called Fruits.

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We have apple and a banana and then cherry.

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So if we want to access all those values inside of that list, we would say for X in fruits colon and

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then we're printing X.

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So X in this case is, you know, each individual, one of those.

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So for each individual thing inside this list, inside the fruits list, we're going to print it out

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on the screen.

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There's another way that you can use for loops as you print out every letter in a string.

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So right here in this next one, we have four X in and then parentheses my string.

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So it'll take each one of those characters, including the space, and print it out on the screen.

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OK, so one thing that you're going to notice, Python is used for a lot.

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You're going to be noticing that you're like some of the experts that you're looking at, they're going

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to be connecting to, you know, something called sockets.

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And this is just simply creating, you know, connections over specific ports.

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Think back to our networking section, to another computer using Python.

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It's very important, understand, because, you know, it's going to allow you to quickly connect to

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ports on the go or be able to understand and explain changes.

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You know, if you need to like you need change porridge, change something, maybe some syntax is wrong.

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We'll do it.

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So here's an example, Python script for, you know, connect to a port.

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So you see our recommended top.

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So then we have import socket and then we have IP as a variable and then it says more input.

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So let's say that actually to put the IP address.

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So it takes it as more input and then you have the port which you taken as input into port in.

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And this is also a user captured input.

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And then we have another variable that's going to be this is the line at the nexus to the port.

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So socket socket.

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And then these commands right in here is going to allow you to connect to a socket.

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So the way that we would actually make this connection is using the stamey.

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So if s that connect underscore X and then you put those two variables in there, the IP in the port,

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then we will present, you know, port and then say that that port is actually close.

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So this is a way to check to see if you can actually get to this port.

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If you can get to it, then I would say that it was open.

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But in this case, you know, if you can't get to it, it would say that it's closed.

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So that's like a basic overview of, you know, how you would actually connect to, like different ports

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if you wanted to, like, you know, maybe do like a manual port scan, which you will probably never

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want to do.

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But if you wanted to do something like that, you know, you will be able to check to see if a port

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is open.

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If you want to check on a fly, you can have this script handy and you could check that.

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OK, so you kind of already see me do this and I've kind of already gone over it.

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But, you know, if you want to just go over really quickly individually, if you want to execute any

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script the same as a file, you're going to want to go to, you know, the directors and it's time to

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send in the script name and then just hit enter.

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And you're going to be good to go.

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See, you've already seen me do that many times.

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And if you're going along with me, you've probably known as well.

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So you know how to write and execute scripts now.

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So we've got all of the bases and Linux bash in Python.

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So what's next?

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So now that we, you know, have some of those important, you know, scripting basics down and the

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bases down, we're going to quickly go over how you can maintain your privacy in a nice and safe so

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no one can really be watching.

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You know, we're going to go over, you know, some applications and techniques that you can use to

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remain anonymous and safe on the web.

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So.

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I appreciate you for watching his lecture and I will see you guys in the next segment.