Fingers information is stored in the file /etc/passwd and includes the user’s real name, both work, and home phone numbers, work room, and others. If you’re a student or new user looking for a Linux system to start learning on, the easiest place to start is Ubuntu Linux OS. It’s a great Linux operating system for beginners and folks looking for easier Linux distribution to use. Ubuntu is an open-source Linux operating system that runs on desktops, laptops, servers, and other devices. About chfn command: The chfn command is a command line utility that is used to update or modify the user’s “finger” information on the system. This info is stored in the /etc/passwd file and includes the user’s real name, work room, work, and home phone numbers, and others. Syntax: The syntax is the rule and format of how the chfn command can be used. These syntax options can be reordered, but a straight format must be followed.,. Below is an example syntax of how to use the chfn command. Options: The command line options are switches or flags that determined how the commands are executed or controlled. they modify the behavior of the commands. they are separated by spaces and followed after the commands. Below are some options for the chfn command: Examples: Below are some examples of how to run and use the chfn on Ubuntu Linux. Simply run the chfn to invoke it. When you run the chfn command it should prompt for your password and allow you to update your finger info. To gather info of a particular user, simply run the finger command followed by the user account name. Example: It should display the user richard account info: If you want to use the chfn command to change a user’s full name or Real Name for user joe simply run the command with the option below: Example: The command above modifies the user account jdoe with its real name, John Doe To change the user’s home and work phone number, simply run the chfn command with the -h and -w options: Example: To change the user’s room number, simply run the chfn command with the -r option. Example: Finally, run the finger command to display the user’s updated info: That’s it! Congratulations! You have learned how to use the chfn command on Ubuntu Linux.