How do I stop Ubuntu from asking for my password every time I install something?

Question

Whenever I try to install a program I get a password authentication prompt asking me to punch in my password. I would like to know how to disable this.

I tried to google it and most of the stuff I find related to the login password, which isn't an issue for me as I disabled it at startup.

What I need to get rid of is the password prompt for installing and uninstalling stuff.

score 21 · Answer 1 · answered Nov 23 '16 at 04:01

sudo nano -w /etc/sudoers

(and enter your password one last time). Then use the editor to change the line that says:

%sudo  ALL=(ALL) ALL

into:

%sudo  ALL=(ALL) NOPASSWD:ALL

or even:

%sudo  ALL=(ALL:ALL) NOPASSWD:ALL

(to allow assuming any group as well as any user).

score 12 · Answer 2 · answered Nov 23 '16 at 04:10

Type sudo visudo and this screen appears:

#
# This file MUST be edited with the 'visudo' command as root.
#
# Please consider adding local content in /etc/sudoers.d/ instead of
# directly modifying this file.
#
# See the man page for details on how to write a sudoers file.
#
Defaults        env_reset, timestamp_timeout=120
Defaults        mail_badpass
Defaults        secure_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:$

# Host alias specification

# User alias specification

# Cmnd alias specification

# User privilege specification

The first command Defaults env_reset, timestamp_timeout=120 has been modified with a timeout of 120 minutes between having to enter sudo password. The normal default is 5 minutes. Although you can change this to a very large number you will still have to enter it once per boot.

score 3 · Answer 3 · edited Oct 30 '19 at 16:06

3

sudo nano -w /etc/sudoers

add NOPASSWD entry for your user:

yourusername ALL=(ALL) NOPASSWD: ALL

edited Oct 30 '19 at 16:06

damadam

2,873

answered Oct 30 '19 at 08:59

Arun VC

31

score 1 · Answer 4 · answered Aug 25 '23 at 06:32

1

Just type this command

echo "$USER ALL=(ALL) NOPASSWD:ALL" | sudo tee -a /etc/sudoers

answered Aug 25 '23 at 06:32

Ahmad Moghazi

133

score 1 · Answer 5 · answered Nov 23 '16 at 05:09

By default ubuntu logs you in as a non root user for the O/S safety. It's there for a reason so that anybody who is new cannot mess up with the O/S itself accidently. In case you don't want to be prompted for password there is another way

sudo su

now you are root. But be very careful in terms of anything you are doing.

score 0 · Answer 6 · answered Sep 10 '24 at 08:23

Here's a super simple answer for people new to Linux:

Open the default Text Editor. You can find it by searching for "Text Editor":
Open New Document:
Go to "Other Locations" and choose "Computer":
Navigate to etc folder:
Choose the sudoers file
Find the line that says %sudo ALL=(ALL) ALL or %sudo ALL=(ALL:ALL) ALL
Change it to %sudo ALL=(ALL) NOPASSWD:ALL or %sudo ALL=(ALL:ALL) NOPASSWD:ALL