Bash Scripting on Linux (The Complete Guide) Class 02

Bash Scripting on Linux (The Complete Guide) Class 02 - Hello World

Рет қаралды 144,004

Күн бұрын

Moore's Law of computing is very debatable nowadays, but one tech-related concept that's absolutely NOT debatable is that everyone learning any scripting or programming language should start with the classic "Hello World" example. And you know what? LearnLinuxTV is a sucker for tradition. So in this episode, you'll write your very own Hello World script in Bash!
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Time Codes
00:00 - Intro
01:03 - What is a Shell in Linux?
05:03 - How to turn Linux command(s) into a Bash Script
06:40 - Marking a script file as executable with chmod
08:32 - How do you run/execute a Bash Script?
12:37 - How to (properly) write a Bash Script
OTHER BASH SCRIPTING SERIES EPISODES
- Class 01 ➜ Introduction: linux.video/bash1
- Class 02 ➜ Hello World: linux.video/bash2
- Class 03 ➜ Variables: linux.video/bash3
- Class 04 ➜ Math Functions: linux.video/bash4
- Class 05 ➜ If Statements: linux.video/bash5
- Class 06 ➜ Exit Codes: linux.video/bash6
- Class 07 ➜ While Loops: linux.video/bash7
- Class 08 ➜ Universal Update Script: linux.video/bash8
- Class 09 ➜ For Loops: linux.video/bash9
- Class 10 ➜ Where To Store Your Scripts: linux.video/bash10
- Class 11 ➜ Data Streams: linux.video/bash11
- Class 12 ➜ Functions: linux.video/bash12
- Class 13 ➜ Case Statements: linux.video/bash13
- Class 14 ➜ Scheduling Jobs (Part 1): linux.video/bash14
- Class 15 ➜ Scheduling Jobs (Part 2): linux.video/bash15
- Class 16 ➜ Arguments: linux.video/bash16
- Class 17 ➜ Building a Backup Script: linux.video/bash17
- Class 18 ➜ Closing: linux.video/bash18
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Пікірлер: 108

@Capitaine.Albator Жыл бұрын

I think that this is why KZfaq was created for. Thanks 👍🏻✌🏻🇨🇦

@ojochegbe_ Жыл бұрын

Hi bro can we learn together

@usuarioanonimo789 Ай бұрын

@@ojochegbe_no

@skyedunphy 21 күн бұрын

@@usuarioanonimo789 well, sad

@usuarioanonimo789 21 күн бұрын

@@skyedunphy just i be see that video, sorry for my inglés im learning

@katofhyrule12 Ай бұрын

Thank you! Before watching this video, I was able to complete my homework, but I did not UNDERSTAND it. I am now ready to move on to my next homework assignment. Thanks so much!

@jimrakel418 Жыл бұрын

Thanks Jay! I spent a lot of time last week trying to find a good video series on bash scripting and today I finally did!

@theena Жыл бұрын

Thank you, Jay. This is super useful. Kinda genius to put the entire thing online at the same time too. Perfect chunks for a person like me. Thanks again.

@AjayKumar-ev9zi 9 ай бұрын

Thanks, Jay, for this wonderful course with a smooth start!

@marcuswest4572 Жыл бұрын

Terrific. Excellent visual presentation and clarity and good vibes in equal measure. Keep bashing out quality stuff Jay

@AyalaStudios Ай бұрын

Hey Jay! I started watching your videos this past month and I can see the progress you've made from the uploads 4 years ago to the uploads today! Your way of explaining topics seems to have always been awesome - but your camera presence has definitely improved over the years! I just want to thank you for creating the content and show my appreciation. Your instruction is the the kind that many people can benefit from and I hope you continue to create amazing content!

@pankajkarmakar7782 2 ай бұрын

Thanks Jay !! This is my first time to watch your video. Its really informative and helpful. Subscribed for more best content!!

@user-zg3ix9sl9j 4 ай бұрын

You made this so simple! And how you explained it, bravo!!! Gracious!

@demolazer 5 ай бұрын

I've just learned basic bash scripting and I can see this getting addictive. As soon as I do something in multiple commands I immediately think of building a script or .src function. First is mkcd to make and go into a directory. Then mkpyapp [packages] to make the common app structure I use, create a venv and install the rest of the arguments as packages in that venv. Finally open up folder in VS code. Then actscript to put bash script in ~/bin and make executable. Any many more in the pipeline... It's so much fun! Look forward to learning more here

@kannon_bach Ай бұрын

i just completed this video. i really like the way you do things. i'm really, really looking forward to learning this, python and C++!

@carrywhite4639 Ай бұрын

Your videos make me excited about studying🙏 thank you so much❤

@temmy_rk Жыл бұрын

Thank you Jay, this is awesome! you are a great tutor!

@blackyonbi Жыл бұрын

Many people complain about social media and what not, but i do thank you so much for using this amazing tool to share your knowledge.

@amaradoumbouya4119 Жыл бұрын

Thank you for sharing these full courses on KZfaq, there are better than all of paid course ❤❤

@rn9085 8 ай бұрын

This is just awesome. Perfectly explained.

@TheGrimPhreaker Ай бұрын

Thanks for the easy to follow lesson! Even if it's not very useful, I did try to make my own simple scripts to see how much I retained and it was fun!

@kencreten7308 Жыл бұрын

I've used bash for years and years. This such a great course. Your presentation is - super pro, and enjoyable.

@johnkevin1030 Ай бұрын

Dont lie. If you have been using bash for years, theres no reason youll be here watching a hello world program

@Opin10n 13 күн бұрын

@@johnkevin1030 Tbh, I've reached max ranked in a game and sometimes I still go and watch beginner tutorials and end up learning something I didn't know before. you'd be surprised. Plus its fun to reminisce back when I knew nothing and observe how far I've came

@hemantdhiman6179 10 ай бұрын

great jay!!! nice info in the first lecture!!!

@neverless_person1012 2 ай бұрын

Your explanations is great! Thank you! Also watched the video about permissions for files and directories. Now I don't scared of this magic letters "rwx" and digits!

@chesterbelle Жыл бұрын

ty bro i really love how you teach, easy and simple, English its not my native language and im still able to do it ty

@ivandelevic Жыл бұрын

Very good video for beginners.

@danielnadar75 Жыл бұрын

Jay! You are so awesome ❤ Thanks for sharing your invaluable Linux knowledge and Love with all of us!

@ibrahimabdeltawab6418 Жыл бұрын

So informative! Thanks so much

@fabutrash 5 ай бұрын

Thank you very much. Great pacing and explanation.

@veronicarainin5045 8 ай бұрын

Excellent tutorial. Thank you

@Lightcode777 10 ай бұрын

Thank you so much for this course!!!!!

@venkateshiyer5073 11 ай бұрын

absolutely amazing, thank you sir !

@FririkurEllefsen 10 ай бұрын

Great lesson. Learned a lot

@zamolxezamolxe8131 4 ай бұрын

Brilliant! Too bad my professors in the uni did not have such a way to teach things like you do!

@jojobobbubble5688 Жыл бұрын

I might recommend this course to my Boss. We manage Macs with an MDM and this would be handy for both of us

@mahdikhalili5927 2 ай бұрын

its very good. thanks!

@12Q46HPRN Жыл бұрын

Great video! I am looking forward to watching the rest of the series. Any thoughts on: #!/bin/bash vs #!/usr/bin/env bash ? I see them both and was wondering if one is "better" than the other to use.

@venkateshiyer5073 11 ай бұрын

same doubt, is there a difference between the two that i should know?

@richasinghal3611 Жыл бұрын

Good start!!

@safiullahnoori2659 3 ай бұрын

We need more training and tutorial thanks you guide and teaching.

@wifii_millionaire_ 5 ай бұрын

very super cours i simply understand bash script

@funkemonke9537 11 ай бұрын

Thank you so much man.

@sureshabu 2 ай бұрын

Thanks a ton!

@catreunion Жыл бұрын

Thank you teacher 🙏🏻

@barkhadibraahim1023 Ай бұрын

thanks so much

@13thravenpurple94 Жыл бұрын

Great video THank you

@mehdismaeili3743 3 ай бұрын

Excellent.

@abelashenafi6291 Жыл бұрын

Thanks a lot bro.

@hassam1117 11 ай бұрын

Hi jay . Thank you for vim training and I learn a lot . Now starting script training and thank for all your time and training. Mr. Jay I am not sure why you use nano for training script. I was expecting to use vim. I am sure you know better or may be nano is better to writ script. Thank you again.

@samiramir91samor78 Жыл бұрын

Great Work :)

@VideosRichy 25 күн бұрын

thank you!!

@thaidoan868 2 ай бұрын

Thank you

@idan4848 Жыл бұрын

thank you very much!!!!

@isrargaming2849 9 ай бұрын

Its awesome clear

@kushal836 Жыл бұрын

loved it sir thankyou for posting this content still watching and learning from it !!!!

@BeltrameJuan 6 ай бұрын

Thank you!

@kainaatmakhani6550 Жыл бұрын

informative lecture

@YannMetalhead 9 ай бұрын

Good video!

@benjanssens8662 10 ай бұрын

good videos my dude

@haltutor8014 Жыл бұрын

thanks for this short course. confused: which bash shows /usr/bin/bash, but the she-bang says /bin/bash. why the difference?

@oseaniic 10 ай бұрын

Thanks!

@bikabrown6808 10 ай бұрын

Thanks 😊

@jocelynmedina906 Жыл бұрын

Thanks

@leonel_carrizo Жыл бұрын

thanks!

@adamekhobba2156 10 ай бұрын

YOUR ARE GREAT

@simonkalu 7 ай бұрын

Awesome

@marble_wraith Жыл бұрын

What about POSIX compliance? Wouldn't it be better to go that route instead for compatibility? That being the case, why not code for dash instead of bash? The resulting script should be executable in dash, bash and zsh (with compatibility mode).

@ashisharya65 5 ай бұрын

HI Jay, Could you please share what is the font that you are using on your terminal.

@sussusamogus7831 Жыл бұрын

thanks :)

@cavenmasetla8740 Жыл бұрын

This is so beautiful but I'm so intimidated by the IF statements. I have goosebums☹☹☹☹

@Houndwar 5 ай бұрын

Hey jay @learn linuxtv how can u change ur terminal to have those colors.. can u do a vid showing us how to manage our terminal appearance, I am aware that u said u have a variation but I'm sure we can change colors and stuff..

@fictitiousnightmares Жыл бұрын

8:48 I'm curious why when it showed the contents of the directory it doesn't color the folders and such like it did when you just typed ls? Not nearly as useful as a script.

@csharpner Жыл бұрын

The "Jay Challenge". Make an entire video without saying the word "Well". Go! ;) Great videos, BTW!

@Sashin9000 8 ай бұрын

I like your gnome shirt

@tinacole1450 6 ай бұрын

I simple used chsh -s /bin/bash and restarted to change. Later I changed it back to zsh

@Royaleah Жыл бұрын

Is it just me? I always put 'exit 0' at the end of my scripts. Even if I don't have other exit values else where in the script.

@jimmyrichards5595 Жыл бұрын

Same here.

@user-py7vj6dv4j 9 ай бұрын

is learning bash script have afuture and get jobs in devops or aws engineer?

@user-rc1jg2rf3h 3 ай бұрын

how do you install that on windows i mean that interpreter looks clean

@JackHammaH9000 6 ай бұрын

hey, i switched to bash, it was on zsh on kali; now when i type commands like sudo, ls they don't "change color" the command works but they don't change, anyone having the same "problem" ? thx

@ClevelandEscape 5 ай бұрын

For some reason mine isnt changing colors in terminal when i run nano

@manojkumar-jt3fw Жыл бұрын

Please suggest me a Bash Scripting Reference textbook please

@syedanas2823 3 ай бұрын

is it okay to use kali for bash scripting cause mine directory is /zsh

@rickgrimes47 3 ай бұрын

yeah it's fine, I also use kali.

@rickgrimes47 3 ай бұрын

did you dual boot it?

@syedanas2823 3 ай бұрын

@@rickgrimes47 no been doing it in virtual mach

@cagataytekin6372 4 ай бұрын

buyuksun hoca

@guilherme5094 Жыл бұрын

👍

@g-jalil6961 Жыл бұрын

😊

@craigozancin Жыл бұрын

Why are you using sudo chmod for a file you own. The use of sudo is only needed if you do not own the file.

@TheGacko Жыл бұрын

yes was going to say -- no need to sudo chmod files in your own home folder.

@HadToChangeMyName_YoutubeSucks Жыл бұрын

lol...was looking to see if anyone else noticed

@Abdirahmaann Жыл бұрын

Kkkk

@franciscoromogaray3076 5 ай бұрын

banger

@luciengrondin5802 Жыл бұрын

There is no need to search for bash with `which` in order to execute it. In case your default shell is not bash, and assuming bash is installed, it should be in the PATH so you can just type `bash`, or even `exec bash` to replace the current shell.

@user-lu2hu4cc5h 3 ай бұрын

my linux vm still says zsh. any solution?