Lil' Linux Lesson - Sudo for beginners!
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- Äas pĆidĂĄn 19. 06. 2024
- Ever want to know a little about sudo, the Linux/Unix command to elevate user privileges?
Well, finally, here's a little video for you! This is the first installment in my new series, "Lil' Linux Lessons"! These bite-sized videos are designed to be short introductions to a complex topic for Linux beginners.
And if you want to help me make more Linux content:
đȘ / veronicaexplains
đ vkc.sh/merch
Chapters:
00:00 - What is "root" anyway?
01:34 - Introducing sudo!
02:23 - How to use sudo
03:28 - A bit of advanced sudo concepts
04:34 - Sudo Summary
#linux #terminal #commandline - VÄda a technologie
Want to help me decide the next "Lil` Linux Lesson" topic? I'll be putting a poll out to Patrons before doing the next one, so make sure to check that out- it's a great way to help support the channel. And thank you!
patreon.com/veronicaexplains
I like this short form. Great for filling an idle 5 minutes.
As always writing a comment to support the channel
I saw on the right side of the screen that you are teaching yourself machine language. Good for you. My first machine language programming experience was on a Univac mainframe back in 1974. Most fun I've ever had on a computer to this day.
A little tip that i didn't know a few months ago...
If you type a command like "cd /etc/sudoers.d/" and press enter but you forgot about sudo...
You can type "sudo !!" press enter and !! replace the last typed command... hope it helps someone!
There are quite a few other history substitutions, e.g.
â!!â to substitute the last command
â!«n»â to substitute command number «n» from your history
â!«prefix»â to substitute the last command beginning with â«prefix»â
â!?«substr»?â to substitute the last command containing â«substr»â.
0:37 The high quality graphics are what makes the concepts this channel presents understandable
The Lil' Linux Lesson is a great format!
I would definitely watch more videos like these.
That being said, the in-depth, longer videos/reviews are dope too (I use Arch btw)
I swear, so often, when I first started my linux journey, I would run across a topic that was part of some community debate.
Like Sudo vs Su, and I would not know it was an update, and I would just hear someones aggressive opinion about sudo, and how bad it is.
So while using ubuntu, I would feel like a inferior user.
But now in the last years, I've heard more of the debate, and now I feel like the whole "debates" that occur in linux can be an issue for new users.
It's hard to know who to listen to.
SO far, your channel has been often helpful, and thank you for that :)
That guitar riff at the beginning sounds really nice!
As for other Lil' Linux Lessons - I always forget how to use 'find'.
Me too!! I was going to suggest that one :-)
+1 on this
Great video Veronica!! Linux is awesome and so are you!
Intro to package managers would be an apt subject for a lil` Linux lesson topic.
I see what you did there!!
On Debian you gotta install it yourself I've found, also on Debian running "su" doesn't set your path right, so you can't run usermod. You have to enter "su -" instead and then you can run usermod as root.
I'm not sure if this would be a lil lesson, and more of a longer one, but what about a video on apt and dpkg. And how to fix issues like "broken dependencies" and things like that. How to force specific versions of programs or how to package and install a program compiled from source into a .deb file potentially using checkinstall.
If you don't set a root password during the install, it does configure sudo for you afaik
@@bennihtmcertainly does
A small and great pill of knowledge! If I may add a sugestion (as a non-patreon), SSH is a very important program for most system management, and we can use it to play remotely with a raspberry pi (which is another interesting piece to learn with in itself)
I love your videos! Great job Veronica!
Thanks so much for this. I have an exam on Sudo this morning!
i love this small explanations. Thanks Veronica.
Just recently came across your channel. Super educational and informative. Also love your humour, amazing work!
Very nice!!, love your vids!! đ
Love the no nonsense explanation!
Great vid veronica
Thanks a lot. Simply and right explanation
You are incredibly clear on your topics, keep your good work
I definitely love the amount of content in these short form videos. Would be great to turn it into a playlist that covers different commands.
You should do much more of this. Fantastic voice and way of explaining things!
Great video!
Great video.... love to see more on sudo user group segmentation..
Tmux would be a great for Lil' format.
Great as ever Veronica! Thank you for this! I use Omni-OS as a file server (with Napp-it) and a lot of the commands are very similar with Linux... As I fumble through using it, lessons like this are very useful! :) See you in the next one!
Oooh OmniOS! I run it as a VM/container host. Youâre probably running pfexec instead of sudo?
Excellent!!!
Thank you Veronica đđ»
Thanks for a very well-explained video! I've just added myself to your subscriber list. And, I really like that T-shirt! Took me about 30 seconds to "get" the colour list reference.
Great video, You are definetely the coolest nerd aroud!!!
Love your videos, I work in the data cabling industry and got the shirt immediately
Love your SHIRT !!
Thank you! I designed it myself! :)
It's for sale on the website if you'd like one- all proceeds help support the channel! vkc.sh/product-tag/t568b-cheat-sheet/
@@VeronicaExplains Veronica, keep the good work...and the good design. You are awesome !!!
Brilliant. As a beginner/returner to Linux, I'm looking forward to many more Lil' Linux lessons on the terminal, VIM, good housekeeping, and useful shortcuts.
Thanks for this Veronica this explains why some distros ask you a different password for root
Thank you; nice explanation
3:13 The key difference between âsuâ and âsudoâ, as far as Iâm concerned, is that âsuâ prompts for the root password, while âsudoâ prompts for _your_ password. âsuâ lets you become any user for which you know the password, not just root. It also allows the root user to become any user without knowing their password. âsudoâ gives you more fine-grained control over what users are allowed to do. Many admins prefer it because it doesnât require the root user to have a valid password.
Linux _faux pas_ I see too often: people using sudo to run su. Tisk.
I am new to Linux and have watched dozens of tutorials. I would love to see "LLL" on the most popular terminal commands. Your explanations are well done and more understandable to the noobs (me). Thanks for the content.
Thanks. I learned a lot.
just watched all your videos, got myself an old sever and some switches so I was going to try to build a sever for a home network.
Your videos are will done and informative, this should be easier as I started using Linux when windows stopped support for XP.
Because I have real hardware it should be more like real world experience, except for the internet as the best I can get right now
is 15MB per second, there is also still a dial up that I can use. As far as the terminal I started with dos and win 3.1 and wrote
subroutines in basic. your videos will be a great help to get started.
Thank you Veronica for making such awesome nerdy content. I was just using GNU Screen and was seeing a lack of good explanations of what a tty is etc. So I thought I would just suggest it. No matter what, keep making great content and thank you!
That's a great idea! Thank you! And thank you for watching!
Very good video.
I've been using sudo since 1995. At this point I give it no thought. I'm only here for your impeccable dictation.
very clear
thank you
I want one of those shirts⊠Genius
And YOU are awesome!
I would like to see one of your excellent videos on grep. Thank you for doing great content.
That was handy. This windows end of life jump is looking up.
I like this format, too! :) Maybe some of the more in-depth video topics could be available on your Patreon?
Love the shirt!
Thank you
I bet you will be on top of the CZcams algorithms.
Great and powerful concept. Well done. Next commands to contemplate: cron/crontab/etc and its "newer" incarnations. OR, the at/batch system. OR, even better: how to use man pages. "man crontab" v. "man 5 crontab"
Oooooo that's all really good. I was thinking about man pages specifically for an upcoming video because there's so much confusion!
@@VeronicaExplains Hey! it's 2022, you can't say man pages, it's person pages. LOL
I recently discovered your channel and Iâm loving it
I do have a question tho, could you make a video on how to make a Linux installation media with personalized packages?
Starting to like Linux, jeje
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Oh my! A fellow dead language speaker! COBOL!
Used it on MVS and other older machines. Also with Imbedded C đ
You got C64? I had a ZX-81 (Sinclair equiv) with a whopping 16K pak RAM! đ€Łđ€Łđ€Łđ€Ł
Had lots of fun playing with the Z80 assembler!
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PS: Love your contralto voice! Brings back lots of good memories with my big sister! đđđ
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Hello, I'm new here, that's pretty cool!, I'm from Uruguay and in school and high school everyone was getting computers with Gnu/linux installed already, it what was called "plan ceibal" I remember changing mine to windows Xp just to be able to play some video games that ran only on windows, or else you needed to know how to use wine. Always loved to mess around with the different distros, this was 10+ years ago so I don't remember exactly all of them, they where customized by the organization that gave away those laptops.
Now I use windows in my personal and work environment (I'm an analyst) But I'm looking for a distro to change to, Linux is fun :) thank you for your videos!
Hey Veronica! Beautiful content!
I'm a seasoned programmer (15+ years of experience) and I have reasonable understanding on using command line for day to day navigation and js/npm cli commands, and other tools that are useful to my workflow.
However, I never had any core Linux foundation. If I were to study that in a somewhat structured manner what should I be looking for? Is that a topic for one of those Lil Linux lessons?
Cheers!
sudo apt-get more Lil' Linux Lesson. ;) If you are going to cover the sudoers file, then perhaps some sudo syntax too?
Great video! Unrelated note, but I think that using doas for most end users is better, a majority of users who aren't power users should use doas as you only rarely need the terminal to install your occasional app, and to update your system for simple stuff like that I consider doas better.
You know I always loved sudo, then I started playing around with Unix systems that I needed to install and configure sudo... Enter visudo!!! Damn, have to learn vi all over again just to configure sudo lol.
I always thought sudo was some kind of martial arts until I discovered Linux.
Great Video thank you⊠Next explain about BorgBackup maybe?
Yes!!!
i like the shirt. better than fumbling around with little cheat sheets when splicing ethernet. good outro song too.
Thank you- I designed that shirt! I thought it was pretty fun. If you'd like one for yourself, I sell them from my web shop at vkc.sh/merch!
Tar or rsync would be a good command, it could help newbies start thinking about backup
You should do a video on the sudoedit command, which is a much better and secure way to edit files as root. You probably should also make a point to mention that editing the sudoer files should be done via the visudo command and not your text editor of choice. visudo is designed to help make sure you don't do something wrong and basically remove all root level privileges from everyone, including the root account (don't ask me how I know this, that was a very bad day for me, and I'd rather not talk about it :D ).
Thanks
Thank you so much!
Try "doas", which is an alternative for sudo, originally written for OpenBSD.
Phil Collins likes sudo too. He just says the word.
We would love to hear you go over how to edit the sudoers file....
sudo is very important on macOS, too!
hey can you publish the outro song somewhere? it sounds so catchy and i really like it but haven't found it on your about tab nor if i searched for "littlest punk" on your chanel.
cool videos and website you got! :)
Thanks for the compliment! Patrons got a link when it first published, otherwise I'm hoping to put out the channel songs on Bandcamp sometime this year.
Hello greetings. . Thanks for your input and tutorials. The the video. Which I think is the last you did of Linux Mint 21 installed on a MacBook. I asked you a question. Please. If you can answer.
All I needed to know about sudo was this: sudo su -
bwahaha!!
You are my favorite teacher. Im 35 and just learning to code. Its a bit disheartening cause you know, I was in High School when skeet skeet was put in the dictionary. Should have started earlier....... Poppy cock!!! Better late than never! Thanks for your awesome videos!
Excelente contenido! Por favor podrĂas agregar subtĂtulos en español?
How can i set the parameter for how long the root password is cached? And what is the standard setting?
Suggestion for the next video ... "awk"
PS: I love your videos...
Thank you! Only problem with awk is that I'd need to get better with awk! (nervously looks side-to-side)
@@VeronicaExplains I understand... I only know that is a powerful tool... maybe grep suits better but in the end is up to you to decide... there are awesome commands out there
I never bothered with awk. I found Perl did everything awk could do and more, and do it just as concisely.
Would love a lesson on 'sed' command
Great video, but I want to add that doas > sudo :)
I enjoy your videos on the shell and itâs commands. For sudo in my Debian servers sudo is disabled. I donât see the need for anyone else to run as root. I get that some off shoots of Debian donât add a root user and therefore everything must be configured by sudo. It comes down to personal preference at the end of the day but I use su -
If you know what you're doing with a root user and are the only user on the machine, I think that's just fine! I figure the audience for "let's learn X" is one that is new- new users are less likely to know that stuff. Plus, in corporate systems, there's typically a group of users with assorted extra privileges, and sudo makes that pretty easy- I figure those wanting to learn it have an interest in working with it professionally at some point. :)
I like to use "sudoedit" instead of "sudo vim", cause than it will use the user's .vimrc and not root's vimrc. Could you make a video about "doas" and compare it with sudo?
Let's do grep with a little bit of regex next!
Great power comes with great responsiblity.
How about a video on doas?
4:30 So you tell the user in which group they are?
Or you tell the group which users they have?
I always add Defaults insults in visudo file just for fun đ
Is SUDO kinda like run as Administrator?.
Off the topic here Veronica, but have you every played the windows 95 game called The Neverhood?? It is a claymation style game and it is old and incredible. Also, have you every messed with SDR radio for linux??
My favorite sudo command is "sudo !!" as in, 'Crap, I forgot to put sudo in front of that last command.' It repeats the previous command with sudo priveleges...
I really wish Windows had this. I don't know how many times I get the feedback that the terminal or PowerShell isn't running as Administrator. đ€Šââ
3:11 which password is that one? I enter the login password and it says "wrong password", I enter the superuser password and it says the same
is there a setting Called Program*, its default is set to *Agressive TEwNice tutorialch is making that sNice tutorialtty static soft, change that one, once to
veronica which is your Favorite Linux distro?? { of everyday use]
I installed debian and accidentally made my primary user not root by providing a root password in the installer (I thought I had to repeat the password of my account).
Now i have a root and a primary user. I'm so confused
I edited that file to get sudo permissions. So what's the point on having that root user now?
That shirt is dope.
Thanks! I designed it myself! :)
You can buy it at vkc.sh/merch! That's one of the best ways to help support the channel!
XKCD has my favorite comic on this. One person tells another to go make them a sandwich and they refuse. Then they /sudo go make me a sandwich and they comply.
4:46 "Which command would you like to see a lesson on in future videos"
That question does not make much sense to ask, because I think there are a lot of people that does not even know which commands exist. So any commands would be good.
What kinds of things can you do as root that you might not be able to do simply as a member of the sudo group? Is there anything? Or, can members of the sudo group generally do everything root can do?
That group is just one of the ways of controlling access to sudo.