Bash in 100 Seconds 

It's called a SHELL as it hides the kernel Wow I never thought of it like that :))

fireship is turning us into 10X developers without us even knowing it

So, the main take-away from this video is that the operating system is a squishy snail inside a shell?

"Rust in 100 seconds" would be cool

These 100-second videos are so underrated, no one else fully outlines a concept this well. I can see if it's worth learning before I invest my time. 🔥

Some thoughts: EDIT: Please stop telling me about `#!/bin/sh`. This video is specifically about bash and so is this comment. I am aware that posix sh... exists. If you want to write POSIX compliant scripts, use sh. If you want to write modern scripts, use BASH. Also: even if you use sh instead of bash, you may still be writing bash. The best way to test for that would be shellcheck. Oh and `/bin/sh` is not specified ny posix either, so you'll probably still want to use `#!/usr/bin/env sh`. - Please do not use `#!/bin/bash` or `#!/usr/bin/bash` as your shebeng. Instead use `#!/usr/bin/env bash`. This way, bash can be installed pretty much anywhere and it will still work. - Please always put double qoutes around variables unless you specifically need them unqouted (which you do when loop over an array using a for-loop for example). This will prevent unintended splitting of strings. Note that in bash single qoutes ('), double qoutes (") and backticks (`) all have a different meaning. Speaking of backticks: - Whenever you see a stackoverflow answer around processing a command's output, you will probably see someone using a command enclosed by backticks. This is deprecated and should not be used. Instead, you can use $(command). However, you should also double qoute that, so "$(command)". - Variables don't have to be all-caps. However, if you use them like " $VARsomething" where only VAR is the variable name, you may need to use curly brackets to signal bash where the variable starts and ends: "${VAR}something". Those can also be used for substitutions, which I recommend you just look up ;).

add `set -e` at beginning to exit script if any command fails, `set -x` for printing commands that are being executed very help full while developing script.

Fun fact: You can use $0 instead of $SHELL to get the actual name of the current shell, not just the path

Bash literally taught me the true power of programming beyond console and libraries. Like it's the most useful language in automation, when you're just starting.

That "bourne" -> "born again" evolution taught me how old the tradition of nerdy play on words is for programmers, even very important programmers. My favourite one is "Nero Burning ROM", it's just so perfectly layered.

After 5 years of avoiding bash scripts, I was literally at the crossroads to learn it for some specific task. I wake up to find this video in my feed. This guy is a mindreader.

Would love a longer bash tutorial as it's syntax can get pretty rough, especially with flags inside if statements which is something unique to bash

That was fast. Now to learn all the branching, variables, pattern matching and syntax intricacies it will take only a 100 weeks. Full-time.

wow I have been using bash for many years but this 100 seconds brought me so much new information I didn't know before, great job

Wow, best 100 seconds about bash. Please do more series like this, bash 100 seconds part 1, part 2 and so on in all 100 seconds video. Short, but very informative. Keep up the good job

I really love the animations of the topic logos in the beginning and end of the video. Nice details Jeff!

Literally never wrote shell script and then it happened that I needed to put some code in background processing to the OS and started practicing how to write shell script. Once I got a hang of it, never went back from there. One of the most amazing ways to automate terminal commands and especially more useful to listen directly from your app.

3 hours of uni classes in 100 seconds. I wish I would have found your channel back in 2019 when I started my CS degree

Another amazing 100 seconds. Gives all the info u need quick and without padding or harsh opinions. Need to hear something again, just pause and go back :D

Bash is possibly the most beautiful and manifoldly useful thing in computer science.

Learning to make simple scripts with Bash makes using Linux way better imo. It allows to automate tasks without installing anything. It's not fully portable but, for what it's meant to do, it's great!

Golang/Rust in 100 Seconds would be great! And also: great video, as always.

Always a fan of short and straight to the point vids of Fireship

Fireship is literally turning the topics that I am scared of thinking It's too hard to easy labeled ones. Thanks Fireship!

Golang in 100 seconds.

Myself in college: Gosh, this Bash stuff is annoying to use. Good thing I just write Java for windows applications! Job: Hey, so we want you to code up some linux containers to deploy our Java application inside. You happen to know shell scripting?

Holy. I never knew how much I needed to see this video. thank you

Perfect, that was everything I needed to know about bash to know whether or not it's worth investing any more time into learning it.

Windows Users: **Confused screaming**

C++ in 100s. I think it deserves one given how much of the underlying web infrastructure is built with it.

you make it look so easy to write bash scripts lol. Love your content man, keep it up!

Aaaawesome....you pointed out all the salient features in 100 secs. Someone watching carefully could start writing a script. Of course that would be the start of the learning curve.

Fireship's 2 min videos are more like video cheatsheets. So cool 👌👍

Wow that brought back memories of cs class. Aah the good old days 🤗 still thinking Id be able to make my own Linux distribution.

This was really good, subscribed!

This was amazing. Thanks. Love and respect from Istanbul.

Hey variable names don't need to be all uppercase. By convention most variables set up by OS or programs are uppercase so it's usually a good idea not to make your variables uppercase. Doing that will prevent you from using and overwriting default's by accident.

Regarding the background command, make sure to put nohup either in the line itself or when running the script to make sure the process is not killed upon session closing. (usually the most affected is SSH logins since every shell is a seperate session.)

I just started learning bash a few weeks ago, this is a great intro!

Learned more than in a 3 Hour Tutorial! Keep it up!

0:17 Command-line interpreters (CLIs) were not a revolutionary concept in 1971. After all, every interactive OS had them, and there were quite a few by that time. What was revolutionary was the idea that the CLI ran as just another ordinary process with no special privileges, rather than being built into the OS.

Love you fireship ❤️❤️

Daaaaaaaamn!! the music used in the background made me eager to learn every single command in bash

Bash is definitely the most useful thing ever created 🙏

awesome video. more in depth version soon?

I'd love to see a 100s video on a reasonably complex design pattern, like decorator or visitor

your last tip about ending the command with & to run it in anothet thread saved me A TON! thanks a lot 🙏

Bestest coding playlist, keep going men👍

JAM Stack in 100 sec.

Fun fact, the “[“ symbol isn’t really part of the syntax but an alias of the “test” program. Both of which does exactly the same thing except that “[“ also checks for a closing “]”, which also isn’t part of the syntax but rather a parameter sent to the “[“ program.

love your 100 seconds videos. Thank you

The intro animation was fire!!🔥

Haskell in 100 seconds. Good luck, you're gonna need it!

Any chance we get a golang in 100 seconds video?

This 2 minute video was enough to get me started righting some scripts.

Answered all my questions in 100 seconds. Thanks

A couple of years ago macOS changed the default shell to zsh. Before Mac OS X 10.3 Panther the default shell was tcsh. Of course you can always change your shell by typing its name.

Great video! Note however that by convention variables shouldn't be all caps unless they're environment variables.

i love your editor settings !

I wrote the O'Reilly book on Bash. It's nice to see such a nice concise video about Bash.

next video: quick overview of simple commandline apps like grep, cat, echo, sed, curl, awk, -ed-

I see the notification for fireship new video, I click. Simple as that

I think & at the end of command just returns shell to you for entering new command and won't send execution to the background. For putting execution at background, we can use supervisorctl or "nohup &"

Wow. Just needed this. Thanks!

Bash shell is love ❤️

Great video as usual ! Kafka and MQ in general in 100s would be great 😁

MAN, how the heck did you explain it that well in so little time? You're a fucking machine of great content

I hit the Like button because there wasn't a Love button. Great summary and beautiful visualization! ❤️

The person who watches your videos must know everything about computer😢

incredibly easy to learn but takes a long time to master

I like this 100-second video style better than the new ones. :)

you should also create long videos as well, your content is the best

Fireship posts video. I click.

"Lua in 100 seconds" would be nice. Both Awesome wm (one of the most used tiling window managers) and Neovim (the best text editor of course) are both written in lua.

Amazing video. Thank you 😇

dude thanks, this video helped me a lot, 100s is more than enough!

I like it when you do “something in 100s” but then go longer after to go more into details.

Bash beyond 100 seconds.

An interesting source for learning good content in a short time. Thanks for sharing.

This dude is God Gift for Developers😍

The default shell on macOS is now zsh. It switched away from Bash when Bash switched its license to GPL v3.

One of the best things about bash is that it's immediately available on Linux. No matter what one installs on the top of the operative system, the bash is there.

Awesome summary!

Educational and fun Thank you for this

I have been developing software for over a decade and I still hate bash. It would be awesomeness if you wanted to do a longer bash video, that deals with all the counter intuitive intricasies in a way that you can almost make sense of it. Just praying 😃

Quick correction, Linux is NOT based on Unix. It's a Unix-like operating systems based on the Linux kernel.

wow amazing, make a 1000 seconds one - and you will cover most of it loved it thank you

Frankly I don't mind having long videos if this guy explains :)

Waiting for The Friendly Interactive Shell (FISH) in 100 seconds now

The default shell on macOS is now zsh not bash anymore

I learned more about bash in this short video than in the first 4 lectures my professor gave.

Thank You Bro for this wonderful video.......🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻

Nuxt in 100 Seconds? :)

Please explain data science, machine learning or AI in 100 Seconds

Using bash has completely changed the way I use a computer, there's so many things you can automate with it, like bulk zipping / unzipping files, installing all programs you use after setting up your computer, updating multiple things at once, bulk editing photos, setting up folder templates, backing up stuff to cloud storage. And when you use it with python scripts you can automate literally anything imaginable.

great content as always

I spend my life writing bash scripts. I get paid for it as well which is nice 😂

Please do linux distros in 100 seconds. Debian: Outdated af but stable Ubuntu: slightly less outdated, also newbie friendly. Manjaro: meh customised arch Arch: bleeding edge, stable (if you know what you are doing) Gentoo: compile everything (use binary if impatient) Lfs: true chad

Comparing this Fireship video to the present ones, theres a lot of difference in cadence, delivery and speed. This video is more chill and laid back compared to his current videos.

Keep making videos about linux related topics ❤