![]() ![]() The example above shows that when we log in as the user guest and start the script with sudo, we must type the password. Therefore, if we execute the same script as another regular user, we have to provide the correct password: guest$ sudo. However, this privilege is only assigned to the user kent. Further, we haven’t leaked the password anywhere. rw- 1 root root 19768 Oct 24 22:59 root_vimrcĪs we’ve seen in the output, this time, sudo didn’t prompt for the password and copied the file directly. Next, let’s save the change and test if it works as we expected: kent$ sudo. This line tells sudo: When the user kent executes the script /tmp/test/cpvimrc.sh with sudo, the sudo command will run the script as root without asking for a password. To achieve that, we can add one line to the sudo command’s configuration: kent ALL=(root) NOPASSWD: /tmp/test/cpvimrc.sh cpvimrc.sh” command in a non-interactive mode. Our goal is to allow the kent user to run the “ sudo. Both of them require root permission to save the changes. Any questions or suggestions are always welcome.To edit the sudo command’s configuration, we can either execute the visudo command or edit the file /etc/sudoers. I hope you like this quick little tutorial about using sudo without password. You can configure sudo in a way that only commands of your choice can be run without password.įor example, if you want the apt update and apt upgrade to be run without entering the password for sudo in Ubuntu, here’s what you need to do.Īnd then add a line like this: user_name ALL=(ALL) NOPASSWD:/usr/bin/apt update, /usr/bin/apt upgrade Run only specific sudo commands without password Thankfully, there is a solution for that as well. It provides you some options to deals with the changes.īut it’s not a good practice to run all the sudo commands without password. (Q)uit and save changes to sudoers file (DANGER!) > /etc/sudoers: syntax error near line 3 <<<Į(x)it without saving changes to sudoers file When you try to save your changes, it performs a check and notifies if there is any syntax error. ![]() The visudo tool creates a new temp file where you can edit the sudoer file using the default text editor. To allow a user ( aaronkilik in the example below) to run all commands using sudo without a password, open the sudoers file: sudo visudo. When I try to install a command (tree) that I need using 'sudo apt install tree', I am prompted for a sudo password. I am learning how to execute commands in the terminal (WSL2 + my bootcamp's image). This is why you a dedicated tool called visudo is used for editing sudo configuration file. I am fairly new to programming and this is my first question so I apologize in advance if there is any missing info. If you make a syntax error while editing this file, the consequences can be fatal. Now, you may edit /etc/sudoers file manually in a text editor like Vim, however, that is not advised. Of course, you have to replace the user_name in the above command with your user name.Įxit the shell and enter again and you should see the changes reflected. All you have to do is to add a line like this in this file: user_name ALL=(ALL) NOPASSWD:ALL This will open the default text editor (Nano in Ubuntu) for editing this file. Use the following command to edit the /etc/sudoers file: sudo visudo Let’s see how to use sudo with no password.īut first, back up the sudoer file as a precautionary measure: sudo cp /etc/sudoers ~/sudoers.bak Execute all sudo commands without password Maybe, you should disable SSH access with password first. If you are on a server, you should be extra careful specially if you have SSH enabled. In Linux, you can change sudo configuration to run some or all command with sudo but without entering password. This is specially if you are the only user on the system or if you think some commands are okay to run without password. Some users may find it cumbersome to enter the password all the time. Which means that you’ll have to enter the password again if you run a command with sudo after fifteen minutes. ![]() The default timeout for the password is 15 minutes (in Ubuntu Linux). When you run a command with sudo, it asks for your account’s password. Most Linux distributions like Ubuntu, Debian, Fedora use the sudo mechanism to allow admin users to run commands with root privileges. After we typed the correct password, it copied the. Learn how to run some or all sudo commands without entering the password on Ubuntu or any other Linux distribution. As the output shows, sudo prompted for the password and waited for us to provide the password of the user kent to continue. ![]()
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