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if you want to become a hacker you need
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to know linux it's a required
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foundational skill it's actually a
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prerequisite to doing anything and
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hacking like you have to know it
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so that's why in this series i'm going
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to teach you linux
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welcome to my linux for hackers series
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now while the series is linux for
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hackers most of what i'm covering is
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linux for
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everyone and i do mean everyone if
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you're nit or anything you need to learn
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and know linux this series will teach
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you the linux foundations you need to
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start hacking
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and we're not going to waste any time
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like you're going to start using linux
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right now i'm not kidding like right
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this moment
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in your browser check the link in the
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description you're getting access to a
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free
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linux lab thanks to my partnership with
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hack the box academy they're actually
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the official sponsor of this entire
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series so let's go let's get you using
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linux right now and by the way i'm
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having my two oldest daughters do the
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same thing
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you ready to start hacking no clue you
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ready start hacking
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sure they are ten and seven they're
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signing up for hack the box academy
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so if you're thinking man i can't learn
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linux that's too hard bullcrap
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yes you can let's go right now
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so once you've clicked the link and you
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signed up which by the way you should
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this entire series will use this lab so
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do it you can go through the
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introduction or just click skip like i
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am
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no big deal now notice one thing real
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quick right under your username you'll
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have 30 of whatever the junk that is
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those are cubes
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cubes are what you need to unlock
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whatever course you want to take through
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hack the box academy you can also
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purchase more but hey we've already got
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30 we're good
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so next click on modules and then all
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modules
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i'm going to scroll down just a bit
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until i see linux fundamentals right
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here
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it costs 10 cubes we got 30. we're good
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we're going to click on unlock but real
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quick before you do that
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notice this right here what this plus 10
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means is that if we finish this linux
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fundamentals course like we actually
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complete it hack the box academy will
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give us 10 cubes back
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so it's basically free as long as you do
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it what you're going to right not a big
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deal
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so let's click on it click on unlock yes
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let's do this thing and let's not waste
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any time let's click on start right now
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and on this page what we're going to do
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is scroll all the way to the very very
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bottom
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all the way here until you see this
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your workstation this is your linux box
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let's go ahead and click on start
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start instance coffee break perfect time
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ah that's good stuff what are you
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drinking today let me know in the
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comments and
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it's ready and this is pretty cool watch
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this all you gotta do is click
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interact and it's gonna launch the
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sucker in your browser
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click go so here we go your very own
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linux machine
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your playground hack the box will call
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this your phone box
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and i love that so now that we're here
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inside our linux box we're going to
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accomplish two things
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first what is this i understand this may
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be your first time
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ever using linux you might be wondering
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what do i do
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i don't even know what this is we'll
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cover that and then two we're gonna
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start using it right now
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i'm gonna get you started with your
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first linux terminal commands and i'll
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cover what that means
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so first what the junk is this so this
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computer you're using right now
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here in your browser which is crazy this
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is linux
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but to be specific and technical this is
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actually a distribution of linux called
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parrot os which is an operating system
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built for hacking now the os
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and parrot os stands for operating
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system like
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windows mac os ios android it's the
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software that we interact with to make
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our computer do things so if someone
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were to ask you hey what operating
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system are you running right now
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it would be parrot os and parrot os is
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using linux
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and more specifically the linux kernel
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and i wanted to point that out because
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linux
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is technically not an operating system
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linux is a kernel
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and we build operating systems on top of
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it so para os is not the only flavor or
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distribution of linux there'll be kali
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linux
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ubuntu centos debian and they'll all use
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a version of the
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linux kernel which is actually part of
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the os but it's not the
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os now what does the linux kernel do it
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has a very important job
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it interfaces with our hardware cpu ram
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hard drive etc when we as the hacker
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want to run our favorite hacking tool
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let's say nmap or something we tell
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parrot os
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click let's run nmap parrot os will say
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hey linux kernel
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can we get some hardware resources here
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can you tell them
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and linux kernel gets the hardware
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resources set up it's kind of the middle
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man between the application
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the os and the hardware but to simplify
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things
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we just call it linux and we say what
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flavor of linux and we say well parrot
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os
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now the bigger question might be why
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linux i mean we got windows we got mac
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os what's wrong with those guys
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well nothing and everything you see
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what's great about linux
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i'll explain what's great about linux is
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that it's open source which means a lot
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but it basically means that it's open
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and free to use and redistribute so
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people can make awesome distributions
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like parrot os
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the other benefit of linux is that it's
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traditionally faster
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and more secure which is why most
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websites and servers in the world use
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linux as their operating system and it's
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also why hackers use linux
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most of the hacking tools out there are
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linux based so that's what linux is and
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this is why we use it but now how do we
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use it that's a more interesting
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question because
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you might be looking at this screen here
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your computer desktop and you may be
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thinking wow i didn't know linux had
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a pretty gui like this a graphical user
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interface icons and a dock and
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menus and stuff like that's cool and you
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can use linux like this
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but it wasn't meant to be used like this
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so slow down
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the truly wheeled the power of linux you
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don't use gui you're going to use the
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linux terminal
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the command line this guy right here go
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ahead and click on that i can't tell if
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that's green or yellow i'm colorblind
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but go ahead and click on that
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icon there this is the linux terminal
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and this is how you are supposed to use
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linux now if you're coming from the gui
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only world where all you use is a
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graphical user interface
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this might seem a little scary i totally
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get it but don't worry
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we're going to walk through this we're
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going to teach you a few commands here
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i'm going to slowly wing you off the
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graphical user interface
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i'll pull it up side by side actually
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watch here we go we're gonna teach you
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your first few commands
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so follow along with me go ahead and
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have your linux terminal open and also
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at the same time
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open up your home directory right here
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just double click that sucker
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double click i'm going to teach you your
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first few commands by doing something
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here in the gui and then doing that same
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thing here in the linux terminal now
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here's the first thing
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what i love about the gui is that you
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always kind of know where you are right
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because you can see it right now i'm in
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my user directory my home directory
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because i can see it right there and
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there's all my stuff now over here
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i don't see anything how do i know where
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i am we're going to solve that our first
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command
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type it in with me right now three
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letters pwd
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pwd stands for print working directory
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and it basically does what we see
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here and here it tells us where we're at
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hey where am i oh i'm right here let's
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try it out go ahead and hit enter
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bam it shows us the full path of where
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we are right now
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the home directory and then even further
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in
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drilling down our user directory so
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right now we're actually in the same
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spot
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as our gui same location okay cool we
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know where we are
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but we still don't see the same stuff in
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our gui like right now where i'm at i
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can actually see my my desktop and
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templates and documents folders and
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downloads folders
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i don't see that here how do i see that
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next command
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type it with me it's going to be our ls
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command ls
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ls stands for list and it's pretty
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simple what it does it'll simply list
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the contents of your current working
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directory it's going to list what we see
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right here you want to see let's do it
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go ahead and hit enter
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and boom it did it everything we see
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here desktop downloads templates
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documents postman
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is also right here see you can do
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anything in the terminal and it's faster
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i'll convince you don't worry let's keep
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going let's say we want to take a peek
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inside of our desktop folder right here
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in the gui i know i can just click on
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that folder double click
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jump in there and i can see my stuff how
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do we do that in the terminal our next
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command here we go
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the command is c d very simple
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cd stands for change directory and it's
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going to do exactly what we just did
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here
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watch let's do it right now just after
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cd i'll hit space and then tell it what
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directory i want to go to let's go to
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desktop so i'll type in
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desktop and go
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oh did it work i don't know
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let's let's see let's print our working
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directory pwd
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let's see if we actually change to that
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directory
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we did there's a current working
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directory and we did indeed
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drill down right into the desktop folder
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and then to see what's on our desktop as
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we can see in the gui we'll just simply
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type in ls to list the contents
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bam there it all is right there now
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we're gonna learn one more command so
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hang with me
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but so far we've done a lot the pwd
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command to see where we are
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the ls command to see what's around us
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00:08:34,719 --> 00:08:37,919
what's in our directory
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and the cd command to change where we
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are but now how do we go
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00:08:39,279 --> 00:08:42,640
back because like in the gui here it's
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00:08:41,120 --> 00:08:43,839
pretty intuitive we got a back button up
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here we just go
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00:08:43,839 --> 00:08:46,880
back and suddenly we're back to our
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00:08:45,519 --> 00:08:48,880
directory we started in
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00:08:46,880 --> 00:08:50,240
our home directory how do we do that
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same thing over here in the terminal
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00:08:50,240 --> 00:08:52,800
it's actually super easy so again we're
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00:08:51,680 --> 00:08:54,000
going to type in cd we're going to
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00:08:52,800 --> 00:08:56,320
change our directory because we actually
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00:08:54,000 --> 00:08:57,120
are changing our directory and then
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00:08:56,320 --> 00:08:59,440
we'll do a space
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and all we're going to put in is dot dot
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00:08:59,440 --> 00:09:02,800
so cd
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00:09:00,160 --> 00:09:04,080
space dot dot hit enter and let's see
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00:09:02,800 --> 00:09:08,080
what happens
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00:09:04,080 --> 00:09:10,959
boom what happened let's type in pwd and
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00:09:08,080 --> 00:09:13,519
see if it changed our directory
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00:09:10,959 --> 00:09:14,160
totally did so again we were in home
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00:09:13,519 --> 00:09:17,680
user
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00:09:14,160 --> 00:09:20,399
89786 desktop we entered the cd
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00:09:17,680 --> 00:09:20,800
command with dot dot and that dropped us
318
00:09:20,399 --> 00:09:23,839
back
319
00:09:20,800 --> 00:09:25,200
to home user 89786 now just for fun i
320
00:09:23,839 --> 00:09:27,120
wonder what will happen if we keep going
321
00:09:25,200 --> 00:09:29,920
backwards if we type in cd
322
00:09:27,120 --> 00:09:30,720
dot dot again i'll type in pwd where i'm
323
00:09:29,920 --> 00:09:33,519
at
324
00:09:30,720 --> 00:09:34,480
i'm at slash home now let's do cd once
325
00:09:33,519 --> 00:09:37,600
more
326
00:09:34,480 --> 00:09:40,320
where i'm at now pwd
327
00:09:37,600 --> 00:09:41,200
oh now instead of home i'm simply at
328
00:09:40,320 --> 00:09:43,839
forward slash
329
00:09:41,200 --> 00:09:44,800
and what this is is actually the root of
330
00:09:43,839 --> 00:09:47,040
the file system
331
00:09:44,800 --> 00:09:48,800
it's the end we reached the end and
332
00:09:47,040 --> 00:09:50,720
we'll talk more about that later
333
00:09:48,800 --> 00:09:52,000
but just for fun again that's all for
334
00:09:50,720 --> 00:09:53,680
fun right here
335
00:09:52,000 --> 00:09:57,279
enter the command ls let's list the
336
00:09:53,680 --> 00:09:57,279
contents of the root directory
337
00:09:58,000 --> 00:10:01,839
huh a lot of interesting files here
338
00:10:00,160 --> 00:10:02,240
we'll talk about all this later now real
339
00:10:01,839 --> 00:10:04,000
quick
340
00:10:02,240 --> 00:10:05,680
quiz for you let's see what you remember
341
00:10:04,000 --> 00:10:07,440
right now again if i print my working
342
00:10:05,680 --> 00:10:09,200
directory pwd
343
00:10:07,440 --> 00:10:11,600
i'm at the root forward slash what
344
00:10:09,200 --> 00:10:12,320
command or commands would i enter to get
345
00:10:11,600 --> 00:10:14,079
back
346
00:10:12,320 --> 00:10:15,360
here where we were to start with now
347
00:10:14,079 --> 00:10:17,200
there are two options really
348
00:10:15,360 --> 00:10:18,480
you can do it with one command or you
349
00:10:17,200 --> 00:10:20,079
can do it with two commands comment
350
00:10:18,480 --> 00:10:22,240
below with what you got now here
351
00:10:20,079 --> 00:10:23,839
we just scratched the surface we're
352
00:10:22,240 --> 00:10:25,839
going deeper into linux we're gonna get
353
00:10:23,839 --> 00:10:27,200
you prepped and ready to become a hacker
354
00:10:25,839 --> 00:10:28,959
but don't that diminish the fact that
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00:10:27,200 --> 00:10:30,560
you did a lot today in this video we
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00:10:28,959 --> 00:10:32,240
covered what linux is
357
00:10:30,560 --> 00:10:34,240
it's both a kernel and an operating
358
00:10:32,240 --> 00:10:36,160
system similar to windows and mac
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00:10:34,240 --> 00:10:38,240
but it's faster more powerful and more
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00:10:36,160 --> 00:10:40,000
secure and way more popular
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00:10:38,240 --> 00:10:41,279
it wins that contest hands down
362
00:10:40,000 --> 00:10:42,880
especially with hackers
363
00:10:41,279 --> 00:10:44,640
we love it and we also covered some
364
00:10:42,880 --> 00:10:46,399
linux terminal commands we started to
365
00:10:44,640 --> 00:10:47,600
move away from the gui weaning ourselves
366
00:10:46,399 --> 00:10:50,880
of the gui
367
00:10:47,600 --> 00:10:52,959
and started typing away pwd lscd
368
00:10:50,880 --> 00:10:54,240
more to come and again massive shout out
369
00:10:52,959 --> 00:10:55,920
to the sponsor of the series
370
00:10:54,240 --> 00:10:57,680
hack the box academy hack the box
371
00:10:55,920 --> 00:10:58,399
academy which is obviously tied to hack
372
00:10:57,680 --> 00:10:59,519
the box
373
00:10:58,399 --> 00:11:01,519
it's different in that it's more of a
374
00:10:59,519 --> 00:11:02,959
guided i.t security platform and by the
375
00:11:01,519 --> 00:11:04,880
way all the commands i mentioned in this
376
00:11:02,959 --> 00:11:06,480
video will be covered in depth
377
00:11:04,880 --> 00:11:07,519
on hack the box academy and of course
378
00:11:06,480 --> 00:11:08,399
don't forget to hack the youtube
379
00:11:07,519 --> 00:11:10,000
algorithm today
380
00:11:08,399 --> 00:11:11,680
hit that like button subscribe
381
00:11:10,000 --> 00:11:12,320
notification bell comment let's hack
382
00:11:11,680 --> 00:11:14,640
youtube
383
00:11:12,320 --> 00:11:15,680
ethically of course yeah that's all i
384
00:11:14,640 --> 00:11:28,700
got
385
00:11:15,680 --> 00:11:32,160
i'll catch you guys next time
386
00:11:28,700 --> 00:11:34,240
[Music]
387
00:11:32,160 --> 00:11:34,240
you
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