Shell Scripting Crash Course - Beginner Level
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- čas přidán 13. 06. 2024
- This is an intro to shell scripting with Bash. We will learn what shell scripting is and create a cheat sheet with things like variables, conditionals, loops, functions, etc. We will also do things like rename multiple files.
Cheat Sheet Gist:
gist.github.com/bradtraversy/...
Command Line Tutorial:
• Linux Tutorial - Basic...
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For those in a hurry!
Till 6:13 he explains what is Shell Scripting and how it's done: In Windows, you create .bat files with a command on each line in the file so CMD executes one-by-one. In Linux, we don't use .bat but .sh, and also, we specify a Shebang so Linux knows what interpreter to use (the default is Bash)
Till 7:45 he explains Variables (i.e x = "Text") and how to make Bash distinguish between letter 'x' and our Variable 'x'
Till 8:49 he tells how we can prompt the user for input with command 'read'. Terminal pauses, until data is input. To display a specific message before the blinking cursor use 'read -p ["TEXT: "]'. (-p displays the "TEXT" you provide before it collects input.)
To store the data input in a Variable write the name of the Variable at the end of the command:
'read -p ["TEXT: "] VAR'
Thanks
Technically speaking, in Unix/Linux/macOS, the file extension on the file name of the script is irrelevant. People can be opinionated about using it, but it truly is only a convention. What makes your script file an executable script in Unix-like operating systems is setting the execute (x) permission on the file. Then, the shebang line (#!) tells the system what type of file it is. The first two characters (sometimes they are each 16-bit) or bytes are called the file signature or magic numbers. The shell is using the exec() system call, which uses the magic numbers to determine how to launch the file as a new process: Binary file (run the machine code inside, depending on the OS) or text file (launch an interpreter as a new process and pass it the text to interpret).
@@stuffandymakes1648 yep u dont even need an extension
bash scripts are more similiar to powershell scripts than they are to batch files to be completely fair. sure you can use them like you would use batch files in Windows but they're way more powerful than that since they're actual programming scripts and not just a set of instructions.
Thank u
I have a test in 3 hours' time and this guy just explained a whole chapter with 98 pages in 32 minutes.
Thanks, man keep the videos coming💝
echo "Awesome Content!!!" >> Traversy Media
NAME="Raghul Baskar"
echo "Nice comment ${NAME}!" >> $NAME
while 1; do echo 'Hello everyone!'; done
Not to be that guy but... file has no extension
@@yersonlasso9754 file extensions are not really required much outside of Windows
Nailed it fr
Thanks Brad, I really appreciate you doing these tutorials. I think CZcams should have more people like you.
Have I ever told you I love you man? Just what I needed
I'm so happy that you aren't being condescending, but friendly as well. Clear, concise language. Much appreciated.
It's always so interesting to learn from you.
You are great teacher.
I have huge respect for you
Thank you for taking the time to put this together. I learned so much from this, I really appreciate everything you put out.
This is the best tutorial for bash scripting covered in such a short time. You really saved me
I can’t think of a more deserving person for all the success he’s got
Revisiting for a great refreshah. I remember watching this at random when I started at a startup based in Boston... gave me the full MA experience. Love the accent.
This tutorial is timeless. Wonderful and relevant after 2 years too.
Bookmarked - use Linux all the time in a job I'm now 3 years into and never bothered to learn this stuff when moving over from WIndows, even though I swapped out cmd for git bash a few months back on all my PCs. I don't have time to watch your CZcams videos anymore - that MERN course is taking up all my free time :D - great course btw: you have a wonderful, natural teaching style.
Dude is the MERN from Traversy ? which one and where it is ?
honest question, did you come back to it after you bookmarked it or nah? i am just wondering since i seem to never do when i bookmark stuff.
plus he's a hottie ;)
omarislearning I do come back to things I book mark. I’ve book marked a python cheat sheet, bash cheat sheet, calculus book and a data structures/algorithms website. I’m constantly going back to them sites, so having them bookmarked is helpful.
One of the best beginner videos for shell scripting. Doesnt over-explain. Great stuff!
Amazing video man !
I learnt so much from you by following along on my computer and I can definitely say without a doubt that I'm more comfortable with bash scripting basics after I watched your video.
Thanks for the educational content
Keep up the good work !
Great content! I like the pace, just right. Keeps you interested without overwhelming. Easy to follow along. I subscribed!
brad your tutorials are simple straightforward thanks for making everyone's life easier thank you
One of the best shell scripting videos! Coherent, Informative, right into the point, and time-saving.
please tell me you know the WHILE loops in other programing languages right? and how on earth this while loop that he just read and wrote from his script doesnt need any explanation of what -r is? and what the condition of the while loop is? how is this choherent and time saving? I assume you are a programmer like myself
Probably the best video I've found on the subject so far.
OMG.. the quality and the content diversity of the channel getting improved in every video. Hats off to you.
You are awesome dude ! Thanks for making the world a lot easier.
it's refreshing to watch a 30 min video that I actually wanna watch, thanks for this video, I'll have a job interview about shell today :)
This is a really GOOD content. Thanks Brad! It is always good to learn more about something that I know. Always learn more.
Thank you, Brad.
You are definitely the best teacher in the world.
Waiting for the intermediate and the advanced one! AMAZING!
thanks Brad. This is really a short and sweet piece of video and one of my best used half an hour.
simple and very practical .... you have covered top common syntax .... thank you!
Just in time Brad! I got a paper due on sunday on bash scripting :)
Lucky you were
@@brianadams2862 Did we meet in The Summer of 69??
@@metdelta1 Nop
You just made things simple. Not confusing by putting too much into it. Got it what's needed.👍
This was great and I'm happy with you changing up the material a bit. I've been wanting to learn more about System Administration and IT. I know this stuff is basic but it's still a good intro.
Been waiting for this. Great tutorial Brad!!! Very useful especially since I use a arch distro
This is really a great video! It has everything for a beginner to know. Concise and useful!
Thank You Sir, the way you explain is awesome. It directly goes into mind. I learnt a lot from your tutorials.
Much respect.
Your teaching style is awesome man
On point, very compact video. Thanks a lot for this great source for a start into bash scripting!
Fantastic session - thank you Brad! This is very helpful.
AWESOME TUTORIALS... Thank You so much for Uploading the Lesson!!
There is so much Love and appreciation here, I was just poking around and was overcome with positivity.(I was losing all hope for humanity just prior) I'll be camping out here until I can reach an understanding of Bash without BashING something in the process. Thank you all for making it possible to enjoy learning and by supporting one another, we can all get the skills it takes to BASH Bash!
Just listening to this man speak calms me down. You get my like sir.
Uploaded 3 years ago...
Brad, you are the best🐐
Amazing Brad! More on bash scripting please!!
This provided a couple options and commands I haven't used yet. Thank you!
Huge thanks for this video, simple and powerful to learn quickly!
Great video. Your teaching is very easy to follow.
Awesome vid. I like the idea of the channel branching out. There is so much stuff out there and it keeps things fresh.
Thanks Brad. I was always scared of learning bash scripting until I watched your video. Subscribed :)
The BEST tutorial for beginners! Thank you!!
Loved this tutorial! Basic as you say, but super useful. Thank you very much!
God bless you, Brad@Traversy Media. Thank you.
just in time, towards my preparation towards my eCPPT certification.....simple and understanding ...big thanx
Good stuff Brad...You always know some good content is coming up once that transition music starts. And you never dissapoint. Big up on the new content, i've always enjoyed your tutorials. And i cant wait for the JAVA stuff...lookin forward to it
Great Job , easy to follow and very helpful
Very practical! Every basics are all here!
I was so lost watching other content on this topic as I'm a newbie
You just saved me
I hope this helps me pass my exams at Shell,great tutorial!
This is honestly one of the best Shell Scripting tutorials out here. Thank you so much for this amazing video, it really helped me a lot!
i have loved this Crash Course video because it has rich content with real case examples
Thanks. Very good and straight to the point tutorial.
Every time I click on Brad's videos I like it before the intro even plays.. Here in 2020
You just saved me a $20 course online, thank you.
i don't feel bored any time of learning from your channel...
Thanks for making this man..been looking for a good beginner bash tutorial.
You save my system design lab
The teacher take four months for this
You nailed it on 30 mins🤪🎉❤️
Great video, thanks for posting. As usual, lots of good info to get me started and point me in the direction to advance. Thanks man!
Thanks so much for making this! The examples were very helpful.
"I let my accent slip out a little too much there" HAHAH love it 19:57
Only For iOS?
Brad all of your videos are great ! Thank you
Thanks buddy. It's short video but much tought must of basics in very clear way. Thanks a lot
This was really good, I appreciate it you branching out
Thank you very much! Excellent explanation ❤
This is a very useful tutorial.... and ur presentation skill is awesome.
Thanks
Thanks man! I really need this information, I’m new to bash but I know a little about old ms-dos
Hey Brad, thank you! Hope to see these new tutorials!
Awesome refresher. Thanks Brad
I recently learned how to setup my own VPS with NGINX and Node on it so this couldn't have better timing, will watch it soon. Thanks Brad.
Thank you! I am cramming for my Linux +exam and this helps a lot!
This is so helpful for a beginner. Thanks!
GREAT TUTORIAL !!!!!!! Thank you very much
Really enjoyed this and it was super helpful! Thank you
This is the video I've been looking for! Totally have been needing a good CLI shell script video. Thank you!
You are a awesome, I understood everything perfectly, thank you.
Great video as always. I'd love to see some C++ tutorials!
thank you for making this Traversy Media!
HI Brad , great video , will there be anymore videos on shell scripting ? we would like to see more from basic to advance levels .. thanks man ! 😊
This will help me automate lots of my work
Brad, man on fire... keep radiating - we shall soon hit 1m subs.
Good quick tutorial. Thanks
This is an awesome tutorial. Thank you so much.
Much respect to you, you give me a lot of useful tech.
Just when I wanted to get into bash, nice tutorial Brad.
Amazing video. Thank you sir, so helpfully!
Very helpful for beginners.
Awesome tutorial! Nailed it! 🤩
Great crash course this just help alot of people
awesome content which really helps me a lot , big thanks
This was fantastic, thank you!
Thanks Man for this video, I have my lab exam in 3 hours and this video helped me alot
My name is also Brad so for a split second it freaked me the hell out when you said it.
This was really cool!I hope you do more videos on this!
Really helpful video, thank you!