I salute you. Two things, its different when you know something and you are able to pass the same knowledge to others. your teaching is exceptional. My instructors in school makes it much more complicated and hard. But watching your video Eli has made life much easier for me . thank you once again.
I found the explanation by Douglas Rumbough very simple. linux permissions are in sets of 3, USER|GROUP|EVERYONE so to give a test.txt permissions you just remember the following: R =4 w=2 x =1 NONE = 0 you want USER(owner) to have all permissions 4+2+1 = 7 you want GROUP to have read+write 4+2 = 6 you want EVERYONE ele to have no permissions 0+0+0 = 0 so your permissions for the test.txt would be 760
#respect to your teaching skills. Some teacher make subject complicated and hard to understand but some teachers make complicated subject soo easy to understand you are one of them
Why cant I find a teacher like you at my school? Your amazing, your knowledgeable, but also know how to translate the knowledge to those hoping to aspire to greater heights. I am very grateful I found your channel, simply amazing!
The stickybit on a directory prevent users from deleting each others files. Example chmod 1777 /tmp means that if you create a file in /tmp , only you can delete it. To clarify, the permission of a file allow or prevent others to read execute or edit the file, but the permission of the directory allow or prevent creation, rename and delete of a file.
just as a little flavor for anyone that might be wondering why adduser defies the naming convention of thing+action, adduser is basically an overlay that sits on top of another command (drumroll): useradd. in some scenarios it's really just a perl script and not an independent command. makes the process a little easier though, so it is pretty common. the important takeaway being that adduser isn't on every installation image (especially minimal varieties), in case you're trying to invoke it and it isn't working. Most official repos contain the package though, so all you have to do is install it with whatever package manager you're distro uses.
Dear Eli, this is the best TH-cam video. I refer to this video almost every month :) I cannot memorize the commands, that is why I use this as a reference ... Many thanks for posting this.
From ELi's lessons learnt from 2010: don't buy a huge whiteboard size 2 meter on 4 meter on which you write everything 30 cms from right side, OR, buy a longer power cord for your camera :-)
Eli I have watched almost all your videos but this is the first one I am commenting on. YOU ARE AMAZING. REALLY!! Thank you so much for these very informational and easy to understand videos. All the people disliking your video are crazy. Keep up the amazing work!!
You can set multiple groups or users to a file if you use ACL's. The command is setfacl and the syntax is a bit hard for beginners, but you don't use the command line to do this in windows either, you use a file manager, and you do the same in GNU/linux to make it simple.
Eli, this video is very helpful. I have been promoted to backend administrator on a Minecraft multiplayer server about a year ago. That server runs Linux. Before I was promoted, I had never used Linux before. Since then, I have found this video, and have checked it several times again during the year. Thank you for making this video!
Thank you Eli. I'm also based in Maryland, and currently taking a Linux System Engineering class and this video really helped me understand user and group management and user/group permissions. Thank you.
Thanks for your videos. I am just an IT hobbyist (I am my family's IT guy), but I am learning a great deal from you. You also should continue to explain how you make money. I now make sure to let all of your ads run through so that you can get the add revenue from them.
press esc and type :q and enter to quit vim, or :wq for save'n'exit, or :q! to force exit and loose changes. In old vi, and sometimes in vim, it doesn't really show up, so just type that and it should work. Alternative for quitting vim is ctrl+zz (hold ctrl, press Z twice).
Thank you SO MUCH! I've been dealing with this issue for years (no exaggeration) because (now I see) I'd started with wrong asumptions. Superb explanation! Thx again!
I am switching to Ubuntu from Windows. I love it. File Permissinos were a little confusing at first. Eli, in this video alone, you have made it VERY clear to me. Thanks!
Dear Eli Thanks for these wonderful clips I'd like to come into the Linux world but highly doubt that,When I found this TH-cam Channel It was a miracle for me.Thank u
I agree with you Eli, Linux "IS" really simple. Most Windows users freak out when they hear Linux, and the number one reason...THE COMMAND LINE !! You are demonstrating that the CLI is NOT the monster that it is made out to be. Fantastic Work on your part. One suggestion though. Please get a better writing utensil and move at least to the center of the writing board. Its frustrating watching you run out of room.
Great video! Always good Eli. I’ve got a noob question though: all these user/group operations seem related to one server. What about a network of Linux servers (like in a business) - would there not be a single, central repository of users so all servers leverage the same user base?
Found it really nice, even though things work a little differently in CentOS which I am trying to learn. For example, the adduser command simply adds a user without asking for their password or full name as it does here (6:40).
God love's you and will bless you for using the talent He gave to you to bless others. The topic is well explained by you and you give all details of everything topic you pick on. You are a Linux genius.
Eli, I really like your vids so please don't think I want to bash on you by saying this. That lisp you have is really unique since it's not on classic S sounds but rather on J, H, and CH sounds. Your speech is otherwise perfect so I find it curious that with practice over the years you haven't ever gotten rid of it. Really I'm just curious because I've never had a lisp, so I don't know what that's like. Is it just like a bad childhood habit or is it really a mental/muscular block that a person cannot get past?
I am pretty new too linux, but do have experience with Active Directory, one thing I am not sure about here how would you have 2 separate groups with access to a folder. For instance you have some type of admin group and then say a security/audit group. Which would both need access to a folder but may need at different levels.
Your speech and articulation are great. I like the way you teach. I'm just a little curious. Did you film this inside of a bomb shelter from the old Soviet Union?
Tapes are State of the Ark. Highly unadvisable to use tape backup systems.HDDs are much cheaper / GB, easily integrated, widely supported, and far more robust. The media doesn;t stretch, twist, snap, stick. You'll be lucky to find drivers for tape drives now, let alone in the future. If there is a failure in one small part of a tape backup or restore sequence the backup or restore will fail. High failure rate of "test restores" even in recently backed up data
Great video ! The pronunciation, info , & capture is great. Instead of crudely drawn cmds, your newer videos could start out with the cmds already typed out or drawn out. Then roll into the over view of what the video is about. This is a basic video but for someone looking for specific info, if they didnt see a cmd in the 1st 5 seconds they could move on to your next video faster. Once again, great video, just 50% less face time
@thebigbigdaddy I don't touch tape drives with a ten foot pole.... They were a pain in the ass even when they were the best option... I find Hard Drive backups are the way to go...
Great video, nice to have a more "human" explanation of Linux permissions. But what I don't get is, how do you give two (or more) users/groups permissions to a file/folder, or does this simply not happen in Linux? Use case: I wanna give a 'Marketing' group write access, the 'Sales' group read access and everyone else else no access.
![เปิดใจ พี่ญา คนรุม หลังทัวร์ลง หนักสุดในชีวิต!! l [Nickynachat]](http://i.ytimg.com/vi/2-OJZRtclro/mqdefault.jpg)
this video is probably the most useful video on the entire internet. Thanks
we're in 2020 and this video is still the most useful!
@@yazidproduction haha! Thanks for the reply. I forgot about this. Gonna give it a rewatch.
Very true thanks
and we're now in 2024 and this video is still the most useful ! 😂
Best investment of 37 mins I could of made.. Thanks for taking the time !
I salute you. Two things, its different when you know something and you are able to pass the same knowledge to others. your teaching is exceptional. My instructors in school makes it much more complicated and hard. But watching your video Eli has made life much easier for me . thank you once again.
I found the explanation by Douglas Rumbough very simple. linux permissions are in sets of 3, USER|GROUP|EVERYONE so to give a test.txt permissions you just remember the following:
R =4
w=2
x =1
NONE = 0
you want USER(owner) to have all permissions 4+2+1 = 7
you want GROUP to have read+write 4+2 = 6
you want EVERYONE ele to have no permissions 0+0+0 = 0
so your permissions for the test.txt would be 760
my nigga...
Omg you guys! Ha
this is exactly what eli said in the video tho?
Extraordinary experience. Your straight-forward style made all the difference. Thank you
he is like my main online linux instructor, learned almost everything i know about linux from him :)
Very useful, and understandable for a non English natives as well
Parts start from:
Prolog
User mgm exp. : adduser, deluser 1m31s -
dem. 05m50s -
Groups mgm exp. : addgroup, delgroup 10m46s -
dem. 16m40s -
Permissions exp. : chmod 20m40s
dem. 27m20s -
Ownership exp. : chown, chgrp 30m22s -
dem. 33m10s -
Final thoughts 35m23s -
exp:explanation, dem.:demonstration
Thanks Eli, this stuff's amazing. Can't begin to express how thankful I am for making this both free and public.
#respect to your teaching skills. Some teacher make subject complicated and hard to understand but some teachers make complicated subject soo easy to understand you are one of them
Why cant I find a teacher like you at my school? Your amazing, your knowledgeable, but also know how to translate the knowledge to those hoping to aspire to greater heights. I am very grateful I found your channel, simply amazing!
Linux isn't my domain of working. I want to learn it. So, I'm a beginner and you explain this it well! Congrats
Still rocking, one of the clearest guides to user management and basics of Access control.
The stickybit on a directory prevent users from deleting each others files.
Example chmod 1777 /tmp means that if you create a file in /tmp , only you can delete it. To clarify, the permission of a file allow or prevent others to read execute or edit the file, but the permission of the directory allow or prevent creation, rename and delete of a file.
As always you take something that professors make sound complicated and show how simple it is. Great job I would be lost without these videos.
just as a little flavor for anyone that might be wondering why adduser defies the naming convention of thing+action, adduser is basically an overlay that sits on top of another command (drumroll): useradd. in some scenarios it's really just a perl script and not an independent command. makes the process a little easier though, so it is pretty common. the important takeaway being that adduser isn't on every installation image (especially minimal varieties), in case you're trying to invoke it and it isn't working. Most official repos contain the package though, so all you have to do is install it with whatever package manager you're distro uses.
Dear Eli, this is the best TH-cam video. I refer to this video almost every month :) I cannot memorize the commands, that is why I use this as a reference ... Many thanks for posting this.
Linux may be "simple" if you know the codes. But it is NOT intuitive. These classes are very helpful.
From ELi's lessons learnt from 2010: don't buy a huge whiteboard size 2 meter on 4 meter on which you write everything 30 cms from right side, OR, buy a longer power cord for your camera
:-)
Nothing more than enough in the explanation!10x dude!
Eli I have watched almost all your videos but this is the first one I am commenting on.
YOU ARE AMAZING. REALLY!!
Thank you so much for these very informational and easy to understand videos. All the people disliking your video are crazy.
Keep up the amazing work!!
You can set multiple groups or users to a file if you use ACL's.
The command is setfacl and the syntax is a bit hard for beginners, but you don't use the command line to do this in windows either, you use a file manager, and you do the same in GNU/linux to make it simple.
eli I thank you and appreciate your work
You're an amazing teacher
Eli, this video is very helpful. I have been promoted to backend administrator on a Minecraft multiplayer server about a year ago. That server runs Linux. Before I was promoted, I had never used Linux before. Since then, I have found this video, and have checked it several times again during the year.
Thank you for making this video!
Amazing video, after 7 years in Linux I finally understand user, group, and permissions :)))) Thanks a lot, man!
Thank you Eli. I'm also based in Maryland, and currently taking a Linux System Engineering class and this video really helped me understand user and group management and user/group permissions. Thank you.
I had no clue what the permission does in Linux, but thanks to Eli now the concepts are clear :)
Thanks for your videos. I am just an IT hobbyist (I am my family's IT guy), but I am learning a great deal from you. You also should continue to explain how you make money. I now make sure to let all of your ads run through so that you can get the add revenue from them.
Could not be explained easier than this. Awesome.
press esc and type :q and enter to quit vim, or :wq for save'n'exit, or :q! to force exit and loose changes. In old vi, and sometimes in vim, it doesn't really show up, so just type that and it should work. Alternative for quitting vim is ctrl+zz (hold ctrl, press Z twice).
Eli - Helping me get ready for interviews since 2011.
Thank you SO MUCH! I've been dealing with this issue for years (no exaggeration) because (now I see) I'd started with wrong asumptions. Superb explanation! Thx again!
I am switching to Ubuntu from Windows. I love it. File Permissinos were a little confusing at first. Eli, in this video alone, you have made it VERY clear to me. Thanks!
Thanks for spreading the knowledge... it is highly appreciated!
eli u r proving to be source of inspiration for many novice computer students
Dear Eli
Thanks for these wonderful clips
I'd like to come into the Linux world but highly doubt that,When I found this TH-cam Channel It was a miracle for me.Thank u
Much better explanation than the Ubuntu server book!
there's no idle time now with your videos. Shout out to Eli and everyone involved with Everyman IT, Great job.
Guy is the best teacher ever.
You are doing a great job Eli, you're a good teacher and a lot of IT folks don't have the patience for it. Thanks for what you do.
You're totally an awesome teacher. I've learned a lot from you
much better than what i learned in college , thank
Best teacher ever. Thanks so much Eli
Got here after filtering like 5 videos and many documentations, you got me broo. i was able to do it..
Thanksss :)) :))
Amazing. You are one of the very best teachers online. God bless you real good.
U r EXPLAINATIONS ARE VERY CLEAR SIR
THANK YOU FOR AMAZING LECTURES
The Best tut on users groups and permissions on youtube. Thank You Eli !
Most best best, amazing tutorial about linux permissions ever exist, Thank you alot!
You are the man! By far the easiest video tutorials for Linux admin to follow.
Awesome Video..This guy is know how to teach people...!!!!!!!Hats off to you...
I agree with you Eli, Linux "IS" really simple. Most Windows users freak out when they hear Linux, and the number one reason...THE COMMAND LINE !! You are demonstrating that the CLI is NOT the monster that it is made out to be. Fantastic Work on your part. One suggestion though. Please get a better writing utensil and move at least to the center of the writing board. Its frustrating watching you run out of room.
Thank you sir ! You have no idea how helpful this was for me !
Eli is a great instructor/teacher, like from me!
MAN... WHAT A GREAT TEACHER YOU ARE!!... thanks a lot Eli :)
I have learned more from you than my professor. Thank you for being so descriptive.
Great video! Always good Eli. I’ve got a noob question though: all these user/group operations seem related to one server. What about a network of Linux servers (like in a business) - would there not be a single, central repository of users so all servers leverage the same user base?
Good question.
Hey this was a great vid. The 4-2-1 permissions thing was easily explained. Most books can't do it as well.
Simple and easy to understand. @Eli i must learn teaching skills from you... Thanks a lot.
Just noticed the amount of videos on your channel is giving everyone full permissions (777)
I just want to say that I am finding your videos an AMAZING resource! You are appreciated. Thank you.
Thanks man, cleared a lot of crap my teacher told me in my head
Found it really nice, even though things work a little differently in CentOS which I am trying to learn. For example, the adduser command simply adds a user without asking for their password or full name as it does here (6:40).
God love's you and will bless you for using the talent He gave to you to bless others.
The topic is well explained by you and you give all details of everything topic you pick on. You are a Linux genius.
excellent!!! love the white board, thank you so much. The best tutorial video I have seeing!!!
Eli, I really like your vids so please don't think I want to bash on you by saying this. That lisp you have is really unique since it's not on classic S sounds but rather on J, H, and CH sounds. Your speech is otherwise perfect so I find it curious that with practice over the years you haven't ever gotten rid of it. Really I'm just curious because I've never had a lisp, so I don't know what that's like. Is it just like a bad childhood habit or is it really a mental/muscular block that a person cannot get past?
Eli, thanks. I installed Linux years ago; however, I always used the graphical interface. It is great to be learning the terminal command lines.
such a lovely teacher..hats off..
BRO GOD HAS GIVEN A GR* TALENT KEEPITUP ALL THE BEST
I am pretty new too linux, but do have experience with Active Directory, one thing I am not sure about here how would you have 2 separate groups with access to a folder. For instance you have some type of admin group and then say a security/audit group. Which would both need access to a folder but may need at different levels.
You are good dude, your explanation is very easy to grasp. thanks eli
I love how he feels the need to keep saying how 'simple' things are. As if just by saying so, that's somehow going to magically make it so.
Your speech and articulation are great. I like the way you teach. I'm just a little curious. Did you film this inside of a bomb shelter from the old Soviet Union?
Tapes are State of the Ark. Highly unadvisable to use tape backup systems.HDDs are much cheaper / GB, easily integrated, widely supported, and far more robust. The media doesn;t stretch, twist, snap, stick. You'll be lucky to find drivers for tape drives now, let alone in the future. If there is a failure in one small part of a tape backup or restore sequence the backup or restore will fail. High failure rate of "test restores" even in recently backed up data
I know it's 9 years after posting of this video, but next time please bring a fresh marker :D
Also, thanks for making this vid :)
This is one of the best instructional videos I have come across, thank you very much.
Great video explained brilliantly! Hats off to that guy!
4:07 normally you have to install it for use vim, you can use a cat to see all the users then if u want to do it without install nothing.
You are a VERY good teacher! :)
Wow! I just stumbled onto this video while I was configuring my first server. Thank you! Extremely helpful.
Eli, God job man, but i need to ask you something. What about the permissions of the files and folders created after you set any permissions.
Good question regarding inheritance or the lack thereof...
TechDoofus I think that's where the -R comes into play.
Did he say eksetera?
Great Job man ya spot on with it all, great to see someone teaching new Linux users the rope's
This video is vry helpful thx a lots sir respect from india
Great video ! The pronunciation, info , & capture is great. Instead of crudely drawn cmds, your newer videos could start out with the cmds already typed out or drawn out. Then roll into the over view of what the video is about. This is a basic video but for someone looking for specific info, if they didnt see a cmd in the 1st 5 seconds they could move on to your next video faster. Once again, great video, just 50% less face time
Simple and clear, you did a good job.
Nicely explained, liked a way of explanation👍👍👍👍👍
Awsome and very simple to understand User , Group and permission...
Simple and very helpful explanation. Thanks!
Great video! Easy and well explained. Thanks!
Amazing instructor, let me know if your ever in London, would like to buy you a drink for all your support. Keep it up.
straight and clear, thank You Eli!
@thebigbigdaddy I don't touch tape drives with a ten foot pole.... They were a pain in the ass even when they were the best option... I find Hard Drive backups are the way to go...
i really like the way you explain all the concepts.
Eli is THE Computer Guy!
Its an excellent tutorial series i have come across
Thanks for all the information, you make this very easy to understand.
Thank you for the clear explanation! Your videos are incredibly helpful!
Thank you so much Eli it was great, I was so confused but with this video, penny dropped 😅😅😅
Great video, nice to have a more "human" explanation of Linux permissions.
But what I don't get is, how do you give two (or more) users/groups permissions to a file/folder, or does this simply not happen in Linux? Use case: I wanna give a 'Marketing' group write access, the 'Sales' group read access and everyone else else no access.
Thank you mister Eli,... very, very easy to understand...
Eli you make IT easy man Thank You!!!!