How to use sudo and su command (linux tutorial)

Thanks a lot

Really very helpful

Thank you very much for the video! It's very helpful.

thank you

Thanks for this beautiful explanation.

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thank you for you video 👍

Thank You for the detailed explanation!

nice

linux user how did you type your password i cant understand on typing the password

nice tutorial

Thanks for the effort, i needed your explanation to remember this. But bottomline, less talk and getting straight to the facts, it all boils down to the following:

- su or sudo has NOTHING to do with superuser/root. IT IS NOT about root!!! Becoming root is only a part of it.
- su or sudo IS ABOUT becoming another user. It could be johnny, mary, smeagol, klingklang, and lastly root.
- A successful 'su' means you need to enter the password of the user you are about to switch to. If you switch to be klingklang, by 'su - klingklang' then you must enter the password of klingklang. 'su' without a target user, means target to root
- A successfull 'sudo' means you need to enter the password of the current user you are in. Take note, in 'su' you enter the password of the target user while in 'sudo' you enter the password of the current user.
- A successful 'su' means, you have complete freedom to run any commands as the target user.
- A successful 'sudo' means, the target user and the target command is registered in /etc/sudoers or /etc/sudoers.d/ which basically means, you are allowed to run a subset of certain commands as that target user. It is a constraint variant of 'su'.

The weird syntax in /etc/sudoers is BNF or Bachus Naur Form.

when I try to type the password in the terminal, I can't do nothing. any answers?

i got error like
[email protected][~]# sudo su
[sudo] password for ramesh:
ramesh is not in the sudoers file.  This incident will be reported.
[email protected][~]#

 i cant connect my php to localhost,, anyone could help me

Thank you very much for showing the following command for sudo: "sudo su" to gain root access for anyone listed in /etc/sudoers

I get this command  error dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem. Could you possibility explain this to me?

need help with photorec , after a 2 tb  hard drive recovery  I encountered a problem, I do not know how to sort the contents of 4000 directory , because to go to each directory will take forever , must be a way out using wild cards , I tried and I failed ,I tried Google it and I failed . What i want is sort files : documents ,video,pictures .please help

I ENTER sudo su but i cant enter the passward keybord doesnt work when i typing the password

Tried to masturbate on sudo command but didn't work, su command failed as well.
So, WTF ya talkin'?