finger command in Linux is used to display information about users on a system. It provides details such as the user’s login name, real name, terminal, login time, idle time, and more. The
finger command can be used to check the status or retrieve information about specific users.
Here’s an overview of how to use the
The basic syntax of the
finger command is as follows:
Here’s how you can use the
- Display information for a specific user:
To display information for a specific user, you can run the
fingercommand followed by the username. For example:
username with the actual username of the user you want to retrieve information for. This will display detailed information about the user, including login time, idle time, home directory, and more.
For example, to retrieve information for the user “john”, you would run:
- Display information for all logged-in users:
If you want to check the status of all currently logged-in users, you can run the
fingercommand without specifying a username. For example:
This will display information for all users who are currently logged in to the system.
- Customize the output:
fingercommand provides several options to customize the output. For example:
-s: Displays a short format of the output.
-l: Displays a long format of the output with additional details.
-m: Forces display in a multi-line format.
-p: Displays the user’s plan file, if available.
-h: Displays a help message with available options. You can combine these options as needed. For example, to display a long format output with the user’s plan file, you would run:
finger -l -p username
username with the desired username.
Please note that the availability and level of information provided by the
finger command may vary depending on the specific Linux distribution and configuration. Additionally, some Linux distributions may have the
finger command disabled by default due to security reasons.
For more detailed information and additional options related to the
finger command, you can refer to the
finger command’s manual page by running
man finger in the terminal.