Change Superuser name in Ubuntu?

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asked Aug 9, 2009 at 18:21

answered Aug 9, 2009 at 18:40

You must make note of the caveats though:

answered Aug 9, 2009 at 18:32

John T

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Just edit the entry in /etc/password to what you want. You may also need to update /etc/group for consistency. Then rename your home directory (in /home) to match.

answered Aug 9, 2009 at 18:23

Adam Batkin

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I think if you add

if grep "\\<${USER}\\>" /etc/jailbirds > /dev/null
then
    echo I am not a crook
else
    exec chroot $CWD
endif

If you do try my suggestion I suggest you be very careful. It would be easy to get it wrong and mess things up bad. I have not tested this, by the way.

Содержание

1. Can you change the root username?
2. How to change root username and password in Ubuntu?
3. How to change root name in terminal?
4. How to get back to root?
5. How do I change my username in Unix?
6. How do I change a username on Linux?
7. How can I root on Linux?
8. How do I log in as root on Linux?
9. How do I set a root password?
10. How do I change my root password?
11. What is a root password?
12. How do I change the name of my terminal?
13. How do I change my hostname?
14. How do I change the command prompt name?
15. Can we rename the root user in Linux?
16. Can you change the root username?
17. How to change the root user to a normal user on Linux?
18. How do I change my username on Linux?
19. How to get back to root?
20. How do I change my username in Unix?
21. How do I change my WSL username?
22. What is the command to delete a user in Linux?
23. How to find the root user in Linux?
24. How do I change the user?
25. How can I switch back from root user to normal user?
26. How do I get back to root on Linux?
27. How do I change my username?
28. How can I login as sudo?
29. How do I change my Linux username and password?
30. How do I change the root user name?
31. Re: How do I change the root user name?
32. Re: How do I change the root user name?
33. Changing the username in Ubuntu
34. 1. Change username in Ubuntu
35. 2. Change the Group name in Ubuntu
36. 3. Change the name of the home directory
37. What happens to files owned by the old username?
38. Switching to a normal user from root user
39. Switch to another user from a regular user
40. Switching users into their login shell
41. Switch to root user
42. Run a command as another user

Can you change the root username?

How to change root username and password in Ubuntu?

Option 2: Change the sudo password using the passwd command

First, open the terminal (CTRL+ALT+T). Enter your current password and press Enter. The output you get should show that you can now run commands as root. Enter a new password and repeat it to confirm the change.

How to change root name in terminal?

Launch a new terminal to see the new hostname. For non-GUI Ubuntu servers, run sudo vi /etc/hostname and sudo vi /etc/hosts and modify them one by one. In both files, change the name as desired and save them. Finally, restart your computer for the changes to take effect.

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How to get back to root?

To gain root access, you can use one of several methods:

Run sudo and enter your login password when prompted to run just this instance of the command as root. …

Run sudo -i. …

Use the su (surrogate user) command to get a root shell. …

Run sudo -s.

How do I change my username in Unix?

The direct way to do this is:

Create a new temporary account with sudo privileges: sudo adduser temp sudo adduser temp sudo.

Sign out of your current account and sign back in with the temporary account.

Rename your username and directory: sudo usermod -l new-username -m -d /home/new-username old-username.

11 Oct 2012

How do I change a username on Linux?

The procedure is very simple:

Become a superuser or get an equivalent role with the sudo/su command.

First, assign the user a new UID with the usermod command.

Second, assign a new GID to the group using the groupmod command.

Finally, use the chown and chgrp commands to change the old UID and GID, respectively.

7 Sept 2019.

How can I root on Linux?

File and directory commands

To navigate to the root directory, use “cd /”.

To access your home directory, use “cd” or “cd ~”.

To go up one directory level, use “cd ..”

To navigate to the previous (or back) directory use “cd -”

July 2, 2016

How do I log in as root on Linux?

How do I set a root password?

Step 1: Open a terminal window. Right-click on the desktop and then left-click on Open in Terminal. You can also click Menu > Applications > Accessories > Terminal.

Step 2: Change your root password. In the terminal window, type: sudo passwd root.

22 Oct 2018.

How do I change my root password?

What is a root password?

How do I change the name of my terminal?

scutil –set ComputerName “name” As soon as you press enter, this name is set. …

scutil –set LocalHostName “nom” …

scutil –set HostName “nom” …

scutil – Get the hostname.

July 31, 2015

How do I change my hostname?

Command to change Ubuntu hostname

To edit /etc/hostname using the nano or vi text editor, enter the following command: sudo nano /etc/hostname. Delete the old name and configure the new name.

Next, edit the /etc/hosts file: sudo nano /etc/hosts. …

Reboot the system for the changes to take effect: sudo reboot.

1 month. 2021 .

How do I change the command prompt name?

Can we rename the root user in Linux?

5 answers. In theory, changing /etc/passwd and /etc/shadow would be all you need to “rename” root.

Can you change the root username?

How to change the root user to a normal user on Linux?

How do I change my username on Linux?

How to get back to root?

To gain root access, you can use one of several methods:

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Run sudo and enter your login password when prompted to run just this instance of the command as root. …

Run sudo -i. …

Use the su (surrogate user) command to get a root shell. …

Run sudo -s.

How do I change my username in Unix?

The direct way to do this is:

Create a new temporary account with sudo privileges: sudo adduser temp sudo adduser temp sudo.

Sign out of your current account and sign back in with the temporary account.

Rename your username and directory: sudo usermod -l new-username -m -d /home/new-username old-username.

11 Oct 2012

How do I change my WSL username?

Ubuntu: Ubuntu Configuration – Default Username.

openSUSE Leap 42: opensuse-42 – default username.

SUSE Linux Enterprise Server 12: sles-12 – default username.

April 13th. 2018 .

What is the command to delete a user in Linux?

Connect to your server via SSH.

Switch to the root user: sudo su –

Use the userdel command to delete the old user: the username of the userdel user.

Optional: You can also delete this user’s home directory and mail spool by using the -r flag with the following command: userdel -r user username.

How to find the root user in Linux?

In Linux, root privileges (or root access) refer to a user account that has full access to all system files, applications, and features. …

In the terminal window, type: sudo passwd root. …

At the command prompt, type the following and then press Enter: sudo passwd root.

22 Oct 2018.

How do I change the user?

Swipe down from the top of a home screen, lock screen, and many app screens with two fingers. This will open your quick settings.

Tap Switch user.

Tap another user. This user can now log in.

How can I switch back from root user to normal user?

How do I get back to root on Linux?

How to change directory in Linux terminal

To return to the home directory immediately, use cd ~ OR cd.

To access the root of the Linux file system, use cd / .

To access the root user’s directory, run cd /root/ as the root user.

To go up one directory level use cd ..

To return to the previous directory, use cd –

August 9th. 2021 .

How do I change my username?

Open the Control Panel.

Double-click the User Accounts icon.

Select the account you want to edit.

Click Change my name.

Enter the new name you want to use and click the Edit Name button.

31 times. 2020 .

How can I login as sudo?

Open a terminal window. Press Ctrl + Alt + T to open Terminal on Ubuntu.

To become the root user, type: sudo -i. sudo -s.

Provide your password when advertising.

After a successful login, the $ prompt will change to # to indicate that you have logged into Ubuntu as the root user.

19 times. 2018 .

How do I change my Linux username and password?

First, log in to the “root” account on Linux using either “su” or “sudo” and run: sudo -i.

Then type passwd tom to change the password for the user tom.

The system will prompt you to enter a password twice.

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25.8. 2021 .

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How do I change the root user name?

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Reorx

Level 12

Posts: 4039

Joined: Tue Jul 07, 2009 7:14 pm

Location: SE Florida, USA

Re: How do I change the root user name?

by Reorx » Sat Jan 11, 2014 5:51 pm

Which DE are you using?

Last edited by Reorx on Sun Jan 12, 2014 1:16 pm, edited 1 time in total.

WharfRat

Level 21

Posts: 13833

Joined: Thu Apr 07, 2011 8:15 pm

Re: How do I change the root user name?

by WharfRat » Sat Jan 11, 2014 9:23 pm

usermod -l new_username old_username

Changing the username in Ubuntu

• Change username
• Change group name
• Rename home directory

1. Change username in Ubuntu

usermod -l newUsername oldUsername

Here, I will be changing from sagar to abhiman:

usermod -l abhiman sagar

2. Change the Group name in Ubuntu

groupmod -n newUsername oldUsername

For me, I’m changing the group name from sagar to abhiman:

groupmod -n abhiman sagar

3. Change the name of the home directory

Technically, not changing the name of the home directory won’t cause any issues. But to make it a seamless experience, you should go for it.

usermod -d new_home_directory -m new_username

As I’m changing to abhiman, my command looks like this:

usermod -d /home/abhiman -m abhiman

What happens to files owned by the old username?

I hope you will find this guide helpful and if you have any queries or suggestions, let me know in the comments.

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su other_username

A few things you should know here:

• If you were logged in as a normal user, you’d be asked to enter the password of the other user
• The root user can switch to other users without needing the passwords of those accounts
• If you have sudo access, you can use sudo su other_username to switch user without the password of the other user

su -l other_username

compgen -u

Switching to a normal user from root user

su other_username

exit

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Switch to another user from a regular user

su other_username

sudo su other_username

Switching users into their login shell

su -l other_username

You can use -p option instead of -l to preserve the environment instead of testing them in the new shell.

Forgot your own password or have to reset it for others? Here’s how to change the password in the Ubuntu command line.

Switch to root user

su

When asked, enter the root password:

[email protected]:/root$ su
Password: 
[email protected]:~#

sudo su

When asked for the password, enter your account’s password:

[email protected]:~$ sudo su
[sudo] password for abhi: 
[email protected]:/home/abhi# 

Run a command as another user

su -c command_to_run user_name

The command should be a single argument and hence you should keep it under quotes.

[email protected]:/home/abhishek# su -c "touch a.txt" abhishek
[email protected]:/home/abhishek# ls -l a.txt
-rw-rw-r-- 1 abhishek abhishek 0 Aug 23 07:56 a.txt
[email protected]:/home/abhishek# 

I hope you like this handy Ubuntu tutorial.

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