In Linux, there is a privilege for users like sudo privilege. In case of using the sudo command on the terminal, you will be asked for a password. When you type a password, you will not see any visual feedback like an asterisk or anything.
Here, we are trying to run the command “sudo apt update” then it asks for a password. After entering the password, there is no visual feedback and it shows blank on the password section.
$ sudo apt update
But if you want some visual feedback like an asterisk on the password field, it can be sorted out with small changes on the /etc/sudoers file. You can backup this file first before changing it with the following command:
$ sudo cp /etc/sudoers /etc/sudoers.bak
To show asterisk while typing sudo password on Linux
Now, to edit the /etc/sudoers file, you can simply run the following command.
$ sudo visudo
You must have to search the following line and do some changes on that section.
Now append pwfeedback on this line for showing the asterisk on the password section.
Defaults env_reset, pwfeedback
Press ctrl + x to save the changes and then y to exit.
Now you can try to run the previous command and check if you can see any visual feedback on the password section after using sudo.
$ sudo apt update
Finally, you can see the asterisk as a visual on the password after some changes on the /etc/sudoers file.
Now, you get the idea to show an asterisk as visual feedback while typing sudo password. Try once on Ubuntu or Centos by doing small changes on the file on /etc/sudoers file. Thank you!
Karim Buzdar holds a degree in telecommunication engineering and holds several sysadmin certifications including CCNA RS, SCP, and ACE. As an IT engineer and technical author, he writes for various websites.