How to Login as Sudo User in Linux


Sudo is a Linux program that allows users to execute commands as root without having to be logged in as root. The rights of the user can be limited by granting them permission to use a specific command or set of commands.

This tutorial will provide you with step-by-step instructions on how to give the user permission to use the sudo command in Linux. In order to give sudo permission to user, you need to enter their password when asked for it by the command line interface (CLI).



For you to log in as sudo users in Linux, it is important that you know the root user’s password to begin with. All existing sudo commands are kept secretaries for only the users to have access to and no other except with a password.

The important fact about logging in using a sudo command is that sudo command login both usage and agreement. None is left out, so in case you are used to a su command, it’s time you know that a sudo command is an exception.


How Do I Login As User In Linux?


So many users are still having issues with how to log in as users in Linux, but not to worry, that will be no more. It is quite fortunate that you happen to find this article so just read on till you get to where I stretched it out.

There are many ways to login as root user in Linux. We will explore two of them.

One way to login as root user is through the use of su command, which stands for “substitute user” or “switch user” command. The syntax for this command is:

su [-] [username]

For example:

su -l root

or su -l username1 username2 username3

As you can see , the syntax for the command is su -l root or su -l username1 username2 username3.

Please note that in Linux, we always need to log out from our current account before logging in as root user by using the command exit (exit).

But do you know that in Linux OS, sudo command works with or without a root user password? It can just make good use of your password and sudoers file to authenticate your session on how to log in as sudo user in Linux.

Sudo command has been the best recommendation so far by a few Linux users all over by root users. You won’t get to have any hard time trying to figure out what to do and how to do it, because a lot of answers has been provided.

You can always choose to change your session whenever and you won’t get to border about how to add users to sudoers in Linux. But I will suggest that you stay very close for more information that I will be blending in.


Video Guide


How to Give Root Privileges To a User In Linux


Knowing how to give root privileges to a user in Linux is very important to all Linux users even myself. With the article I will be dealing more specifically with this table content, for now, hope you will find it useful.

Not knowing how to log in as sudo users in Linux will be a major setback to you as a Linux OS user. You will need to have a better picture of how to enable root login in Ubuntu which is a bit more tricky than expected.

So for to give root privileges to a user in Linux, here are what you need to take note of;

  • By making use of usermod to add users to a user group.
  • Repeat the same process using a useradd.
  • Edition of passwords.
  • Edition of files.
  • Set as sudo user.

This is what took me absolutely longer period of time than I ever expected to get but I finally did. So am sharing this with you so as to not have you in the same scenario that I found myself in lately to pull this out.


Read Also

How To Login As Sudo User In Putty


Not only will you learn how to log in as sudo user in Linux, but also how to log in as sudo user in putty. I will make sure of that as long as you are interested and willing to be patient and pay the price to learn how to do so.



Before any other thing else, you should know that to log in as sudo user in putty, you will need to use the sudo-i command. But the issue is not all sudo users can be granted access to this very command.

But don’t worry, that won’t be much of an issue, since being in a sudo group can grant you access to a sudo-i command. All you have to do is to go get a sudo group to join if only for you to be granted access to sudo-i command.

Typing your su- command will make your Linux OS request for your password which you already have an existing one. So after putting it in you will be logged in as the root user on your Linux OS using your sudo login command.


How To Login As Root In Linux Without Password



I will be giving you a hint on how to log in as root users in Linux without a password and will work very well. So just stay tuned to what I have to share with you that still remains a mystery to many Linux users today.

Normally to log in as root to a Linux, you are expected to do so using the password for good and proper authentication. So this has happened to be the limitation of many Linux users, especially those using sudo login command in Linux.

This has been one of the few major drawbacks as to why many can’t focus on how to log in as sudo user in Linux. But with the help of articles like mine, many have been privileged to make such issues come to the past.

You are no different for as long as you are not a perfect use of your Linux operating system. I will suggest you follow up on my article from time to time for more explanatory updates on issues regarding Linux operating system.


How To Add User To Sudoers In Linux


Knowing how to add users to sudoers in Linux operating system has been a good contributing factor. I recommend that you take ample time out to learn and equally know how to add users to sudoers in Linux.

You will need to learn how to add or create a new user by using the useradd or adduser alongside your username. With the username, you can log in to the system since it is meant for you and you alone.

The reason for that is the fact that more than one username could be existing on the system so make sure yours is unique. Don’t worry, I will show you how sudo login command in Linux plays a major role.


For you to the user to sudoers in Linux, there are some steps to be taken one step at a time which I will be sharing below;

  • First of all, you open a root terminal.
  • Type visudo for permission to gain access.
  • Scroll to sudoers file shown on your opened terminal.
  • Right-click on the file.
  • Then replace the existing user with your username.

How To Give Sudo Permission To User In Linux


For you to know how to log in as sudo user in Linux, it’s important you know how to give sudo permission to users in Linux. This is not going to be an existing headache anymore because all will be taken care of.

Not only that, you will know how to give root privileges to users in Linux in due time so all you have to do is be patient. You know they said the patient dog eats the fattest bone right? The same goes for you as goodies are coming your way.

Here are what you need to know about giving sudo permission to user in Linux will be of great use;

Use chmod -R 755 /opt/lampp/htdocs if you want to change permissions of all files and directories at once. Use find /opt/lampp/htdocs -type d -exec chmod 755 {} \; if the number of files you are using is very large.

Use chmod 755 $(find /path/to/base/dir -type d) otherwise.

Better to use the first one in any situation.


How To Enable Root Login In Ubuntu


It is not a disappointing thing to not know how to enable root login in Ubuntu, we all were once in such a position. It’s just a matter of time as a newbie to get all the necessary info required to make you an expert in no time.

There was a time when I used to be ashamed of not knowing how to log in as sudo user in the Linux Operating System. But with time get to realize that it was useless and that is better I step up a little for my own sake.

But I have passed that awful stage long ago, so that is why am here so that no one goes through what I went to. If only you could spear a minute of your time, only then will you see that not all is easier said than done.


How Do I Check If a Linux User is Sudo Access?


You can easily know if your Linux user is sudo access or not by making use of the su-I command line. Because only sudo access Linux users can grant you the privilege to run your su-I command line at all given opportunities.

By doing so, a list of all your sudo accesses will be listed to you on your Linux operating system to make your choice. Unlike trying to know how to log in as sudo user in Linux, this requires no password from you.


How Do I Check User Permissions In Linux?


You can always choose to know how to check your user permission in Linux to know if at all your Linux is authenticated. It is not that much of an issue to do so, if and only if you happen to be very interested in it.

You can choose to use the su-I command line as I have said earlier for confirmation of your authentication. But at the same time, you can also choose to make use of the su-U command line as an optional command line to su-I.


What Is Root Password?


Knowing what a root password is will help you immensely whenever you want to root an account on your Linux. Not many are concerned about this which they should if not because how to log in as sudo user in Linux has blinded them.

A root password is the password needed for you to be able to root your existing account or newly created account. A root password is more like a user account that has full access to all files, applications, and other system icons.


How Do I Recover My Root Password?


I will be sharing with you how to recover your root password because only a few Linux users can do so. Why am I going far, to commonly recover our email password has become a huge deal not to talk of the root password.

But notwithstanding, I will show you how to get that done so just relax and make sure to  understand the steps below;

You first mount -n -o remount,rw

passwd root.

passwd username.

exec /sbin/init.

sudo su.

fdisk -l.

mkdir /mnt/recover mount /dev/sda1 /mnt/recover.

chroot /mnt/recover.


How Do I Find My Root Password In Linux?


Finding your root password in Linux is nothing too big of an issue long as you know how to log in as sudo user in Linux. This will come to you as easier as a piece of cake if only you take into consideration what I have to share.

You can do so from your terminal window by typing the: sudo password root as your input command line. After that, you can immediately type the : sudo password root again then press enter to find your password.

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