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

Ғылым және технология

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
    @Capitaine.Albator Жыл бұрын

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

  • @ojochegbe_

    @ojochegbe_

    Жыл бұрын

    Hi bro can we learn together

  • @usuarioanonimo789

    @usuarioanonimo789

    Ай бұрын

    ​@@ojochegbe_no

  • @skyedunphy

    @skyedunphy

    21 күн бұрын

    @@usuarioanonimo789 well, sad

  • @usuarioanonimo789

    @usuarioanonimo789

    21 күн бұрын

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

  • @AyalaStudios
    @AyalaStudiosАй 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!

  • @katofhyrule12
    @katofhyrule12Ай 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
    @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!

  • @kencreten7308
    @kencreten7308 Жыл бұрын

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

  • @johnkevin1030

    @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

    @Opin10n

    12 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

  • @theena
    @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.

  • @marcuswest4572
    @marcuswest4572 Жыл бұрын

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

  • @demolazer
    @demolazer5 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

  • @user-zg3ix9sl9j
    @user-zg3ix9sl9j4 ай бұрын

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

  • @kannon_bach
    @kannon_bachАй 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++!

  • @AjayKumar-ev9zi
    @AjayKumar-ev9zi9 ай бұрын

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

  • @pankajkarmakar7782
    @pankajkarmakar77822 ай бұрын

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

  • @carrywhite4639
    @carrywhite4639Ай бұрын

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

  • @TheGrimPhreaker
    @TheGrimPhreakerАй 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!

  • @blackyonbi
    @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.

  • @rn9085
    @rn90858 ай бұрын

    This is just awesome. Perfectly explained.

  • @temmy_rk
    @temmy_rk Жыл бұрын

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

  • @neverless_person1012
    @neverless_person10122 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!

  • @amaradoumbouya4119
    @amaradoumbouya4119 Жыл бұрын

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

  • @ivandelevic
    @ivandelevic Жыл бұрын

    Very good video for beginners.

  • @hemantdhiman6179
    @hemantdhiman617910 ай бұрын

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

  • @veronicarainin5045
    @veronicarainin50458 ай бұрын

    Excellent tutorial. Thank you

  • @ibrahimabdeltawab6418
    @ibrahimabdeltawab6418 Жыл бұрын

    So informative! Thanks so much

  • @Lightcode777
    @Lightcode77710 ай бұрын

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

  • @fabutrash
    @fabutrash5 ай бұрын

    Thank you very much. Great pacing and explanation.

  • @chesterbelle
    @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

  • @FririkurEllefsen
    @FririkurEllefsen10 ай бұрын

    Great lesson. Learned a lot

  • @venkateshiyer5073
    @venkateshiyer507311 ай бұрын

    absolutely amazing, thank you sir !

  • @mahdikhalili5927
    @mahdikhalili59272 ай бұрын

    its very good. thanks!

  • @richasinghal3611
    @richasinghal3611 Жыл бұрын

    Good start!!

  • @barkhadibraahim1023
    @barkhadibraahim1023Ай бұрын

    thanks so much

  • @sureshabu
    @sureshabu2 ай бұрын

    Thanks a ton!

  • @mehdismaeili3743
    @mehdismaeili37433 ай бұрын

    Excellent.

  • @catreunion
    @catreunion Жыл бұрын

    Thank you teacher 🙏🏻

  • @safiullahnoori2659
    @safiullahnoori26593 ай бұрын

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

  • @funkemonke9537
    @funkemonke953711 ай бұрын

    Thank you so much man.

  • @danielnadar75
    @danielnadar75 Жыл бұрын

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

  • @wifii_millionaire_
    @wifii_millionaire_5 ай бұрын

    very super cours i simply understand bash script

  • @zamolxezamolxe8131
    @zamolxezamolxe81314 ай бұрын

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

  • @thaidoan868
    @thaidoan8682 ай бұрын

    Thank you

  • @VideosRichy
    @VideosRichy24 күн бұрын

    thank you!!

  • @abelashenafi6291
    @abelashenafi6291 Жыл бұрын

    Thanks a lot bro.

  • @13thravenpurple94
    @13thravenpurple94 Жыл бұрын

    Great video THank you

  • @12Q46HPRN
    @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

    @venkateshiyer5073

    11 ай бұрын

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

  • @jojobobbubble5688
    @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

  • @samiramir91samor78
    @samiramir91samor78 Жыл бұрын

    Great Work :)

  • @isrargaming2849
    @isrargaming28499 ай бұрын

    Its awesome clear

  • @BeltrameJuan
    @BeltrameJuan6 ай бұрын

    Thank you!

  • @idan4848
    @idan4848 Жыл бұрын

    thank you very much!!!!

  • @YannMetalhead
    @YannMetalhead9 ай бұрын

    Good video!

  • @kainaatmakhani6550
    @kainaatmakhani6550 Жыл бұрын

    informative lecture

  • @oseaniic
    @oseaniic10 ай бұрын

    Thanks!

  • @bikabrown6808
    @bikabrown680810 ай бұрын

    Thanks 😊

  • @benjanssens8662
    @benjanssens866210 ай бұрын

    good videos my dude

  • @haltutor8014
    @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?

  • @jocelynmedina906
    @jocelynmedina906 Жыл бұрын

    Thanks

  • @kushal836
    @kushal836 Жыл бұрын

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

  • @leonel_carrizo
    @leonel_carrizo Жыл бұрын

    thanks!

  • @adamekhobba2156
    @adamekhobba215610 ай бұрын

    YOUR ARE GREAT

  • @simonkalu
    @simonkalu7 ай бұрын

    Awesome

  • @hassam1117
    @hassam111711 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.

  • @ashisharya65
    @ashisharya655 ай бұрын

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

  • @sussusamogus7831
    @sussusamogus7831 Жыл бұрын

    thanks :)

  • @Royaleah
    @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

    @jimmyrichards5595

    Жыл бұрын

    Same here.

  • @Houndwar
    @Houndwar5 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..

  • @marble_wraith
    @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).

  • @fictitiousnightmares
    @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.

  • @Sashin9000
    @Sashin90008 ай бұрын

    I like your gnome shirt

  • @csharpner
    @csharpner Жыл бұрын

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

  • @JackHammaH9000
    @JackHammaH90006 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

  • @user-py7vj6dv4j
    @user-py7vj6dv4j9 ай бұрын

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

  • @cavenmasetla8740
    @cavenmasetla8740 Жыл бұрын

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

  • @ClevelandEscape
    @ClevelandEscape5 ай бұрын

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

  • @user-rc1jg2rf3h
    @user-rc1jg2rf3h3 ай бұрын

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

  • @tinacole1450
    @tinacole14506 ай бұрын

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

  • @manojkumar-jt3fw
    @manojkumar-jt3fw Жыл бұрын

    Please suggest me a Bash Scripting Reference textbook please

  • @guilherme5094
    @guilherme5094 Жыл бұрын

    👍

  • @syedanas2823
    @syedanas28233 ай бұрын

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

  • @rickgrimes47

    @rickgrimes47

    3 ай бұрын

    yeah it's fine, I also use kali.

  • @rickgrimes47

    @rickgrimes47

    3 ай бұрын

    did you dual boot it?

  • @syedanas2823

    @syedanas2823

    3 ай бұрын

    @@rickgrimes47 no been doing it in virtual mach

  • @cagataytekin6372
    @cagataytekin63724 ай бұрын

    buyuksun hoca

  • @g-jalil6961
    @g-jalil6961 Жыл бұрын

    😊

  • @franciscoromogaray3076
    @franciscoromogaray30765 ай бұрын

    banger

  • @craigozancin
    @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

    @TheGacko

    Жыл бұрын

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

  • @HadToChangeMyName_YoutubeSucks

    @HadToChangeMyName_YoutubeSucks

    Жыл бұрын

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

  • @Abdirahmaann

    @Abdirahmaann

    Жыл бұрын

    Kkkk

  • @Alpha_Sadigh
    @Alpha_Sadigh Жыл бұрын

    ☯🙏

  • @yusufalfatih8276
    @yusufalfatih82766 ай бұрын

    How you made the like button shining ?🤔

  • @luciengrondin5802
    @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

    @user-lu2hu4cc5h

    3 ай бұрын

    my linux vm still says zsh. any solution?

  • @Ollital
    @Ollital Жыл бұрын

    I'm wondering who first came up with the name "shebang" 🙂

  • @soupmachine5831
    @soupmachine5831 Жыл бұрын

    first

  • @anonim11366
    @anonim113666 ай бұрын

    I think you need to talk less and teach more

  • @cryptovadkan7496
    @cryptovadkan74967 ай бұрын

    # echo $SHELL /usr/bin/zsh Can I take this course even though there's a zsh instead of bash on my system?

  • @ineme-awajiogwuafi5138
    @ineme-awajiogwuafi5138 Жыл бұрын

    thank you very much

  • @patrob3885
    @patrob3885 Жыл бұрын

    Thank you

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