If you want to find if a logged in user(e.g test_user) has sudo privileges, you can run the following command. User test_user2 is not allowed to run sudo on ubuntuserver. If your Linux user does not have sudo access, you will see the following message. User test_user may run the following commands on ubuntuserver: Matching Defaults entries for test_user on ubuntuserver: Here is an example to check if user test_user is sudo user. Now if you want to check if a specific user has sudo privileges, you can use the following command. We have seen how to list all sudo users in our system. We will use grep command to look for rows about sudo group in this file and pipe its output to cut command to extract only the username.Īlternatively, you can also use getent command to get the same output. etc/group file contains information about different groups and their members. $ grep '^sudo.*$' /etc/group | cut -d: -f4Īll users belonging to sudo user group have sudo privileges. Next, you can run the following command to list all sudo users in Linux. We will use awk command to parse this file and print the first column which is nothing but username.Īnother simple ways to get this list of users in system is to use compgen command. etc/password contains a list of all users in your system, along with their encrypted passwords. Here is the command to list all users in Linux. Here are the different ways to list sudo users in Linux. If they are no longer required, it is advisable to find such sudo users and revoke the sudo access. Sometimes you may have given sudo access temporarily to certain users to install applications or run administrative commands. In this article, we will learn how to find all sudo users in Linux. As a system administrator, it is important to regularly keep track of all sudo users in Linux. Sudo users are privileged users who have more permissions to run commands & processes that regular users.
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