![]() ![]() These entities are represented by a file descriptor which is a unique identifier for a file or other resources such as directories, network sockets, or processes – hence the concept “everything is a file”. It implies that in a Linux system, every single entity is considered a file. The oversimplification simply gives a high-level overview of the Linux architecture. We have directories, symbolic links, processes, pipes, and sockets just to mention a few. This sounds somewhat puzzling since the Linux system comprises various entities and not just files. ![]() This is a safer and more secure way of performing administrative tasks in Linux.You probably have heard of the concept “In Linux, everything is a file”. Once you have added a sudo user, you can use the sudo command to execute commands with elevated privileges without logging in as the root user. ConclusionĪdding a sudo user in Linux is a straightforward process that involves creating a new user account, setting a password, and adding the user account to the sudo group. If the new user account has sudo privileges, the command should execute successfully. In this step, we verify that the new user account has sudo privileges by running a command with sudo. Step 5: Verify that the new user account has sudo privileges by running a command with sudo. In this step, we add the new user account to the sudo group using the usermod command. To use the sudo command, the user must be a member of the sudo group. The sudo command allows a user to execute a command with elevated privileges. Step 4: Add the new user account to the sudo group using the usermod command. Once you provide this information, the passwd command sets the new password for the user account. When you run this command, it prompts you to enter the new password twice for confirmation. The passwd command is used to set or change the password for a user account in Linux. Step 3: Set a password for the new user account using the passwd command. Once you provide this information, the adduser command creates a new user account with a home directory and some default settings. When you run this command, it prompts you to enter some information about the new user account, such as the username, password, and full name. ![]() The adduser command is used to create a new user account in Linux. Step 2: Create a new user account using the adduser command. Instead, you can switch to the root user account temporarily using the su command. However, it is not recommended to use the root user account for everyday tasks, as it can be a security risk. The root user has full administrative privileges on a Linux system. ![]() Step 1: Log in as the root user or switch to the root user account using the su command. Let's go through each step in detail to understand what is happening. This command should list the contents of the root directory.
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