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Hello, everyone, and welcome to this video.

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In this video, we are going to run some of the important Linux commands that are being used into day

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to day lives.

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So to begin with, we are going to run some of the system information Linux commands that are used and

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you should know them.

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So to begin with, you have to start your terminal.

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So this is what is called as a terminal.

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So I have started my pirate OS, which is based on the bean flavor.

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Now, this is again a very famous operating system which is used for penetration testing.

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Now, to start your terminal, you just have to click over here.

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As you can see, it will open up a terminal for you.

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I have already opened a terminal and now I'm going to execute some of the system information commands.

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So to start with, you're going to see a command, which is you name.

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So let me just type your name and hit enter.

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It says the name of the operating system, which is Linux.

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Now if you type the command, you name space hyphen A, it will show you an output similar to this.

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Now it displays the Linux system information.

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As you can see, it is showing us Linux.

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They build flavor based potatoes version 5.2.0, Parrott one AMD 64 and SNMP, Debian, etc. etc. Now

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you only see which version is installed.

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You can type cat space slash proc slash version and hit enter and you can see Linux version 5.2.0 hyphen

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two parrot amd 64.

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Similar kind of output where you can see that debian 8.3.0 hyphen six is installed into this computer.

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Similarly, if you are on redhat based operating systems, you can simply type cat space, slash Etsy,

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slash red hat hyphen release and hit enter.

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Now, this is not a red hat based operating system.

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That's why it is saying no such file or directory.

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Let's move on and we are going to type the next command which is uptime and hit enter.

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Now, this command shows you how long the system has been running.

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As you can see, it shows that it has been up 28 minutes.

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One user is there and this is the average load on the operating system.

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Now, if you want to see the system hostname or sometimes also known as the machine name, we are going

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to use the command which is simply hostname and it shows you the host name of the machine is parrot,

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which can also be seen from here.

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Now this is something which is username at the rate hostname.

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So the username is root.

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If you want to verify that, just simply type.

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Who am I?

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And it will show you the current lockdown user of this computer.

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All right.

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The next command is hostname space hyphen I.

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When you do this, you will be able to see the local IP address of the host that you are currently logged

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in into.

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And you can see this is the local IP address of this host.

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Now the next command is that you can see is last space reboot.

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Now this is going to show you the system reboot history when when the computer has been restarted.

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Now, this is handy and helpful sometimes to know whenever there was a system reboot done for your computer.

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Next is very simple.

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You can use date command to know the current date as well as time of your computer.

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As you can see, Friday, February 26.

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This is the time which is ISD 2021, which is the year.

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Now, in case you want to see the calendar, you can do that as well.

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Simply you have to type the command, which is C, a, L and hit enter and you will be able to see the

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calendar from your terminal.

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Next is the command which is simply w hit enter and you will be able to see which user is online currently

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and you can see the user which is root is currently logged in and online.

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We've already seen the command.

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Who am I to know which is the current user which has been logged in into your computer and you can see

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the root user is currently logged in and using the terminal.

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So this is it for this video.

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I hope you guys understood the basic Linux command that can be used to identify the system information

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of your operating system.

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In upcoming lessons, we are going to see more commands for each specific task that we are going to

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perform.

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So I hope you guys understood.

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In case you feel any issues into this command, feel free to ask your questions or queries.

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Thank you.