Learn Linux Commands: How to View Current User Name

Title: Linux command tutorial: How to view the current user name

In the Linux system, it is very important to know the current login user name, which can help users correctly Perform some actions and view permissions. This article will introduce how to use Linux commands to view the current user name, and provide specific code examples to help readers better understand.

In the Linux system, there is a special environment variable called "USER", which saves the current login user name. By looking at this environment variable, we can obtain information about the current user name. Here is a code example of how to use the command in the terminal to view the current username:

echo $USER

By entering the above command in the terminal, the system will display the username of the currently logged in user. This method is very simple and intuitive, suitable for quickly viewing the current user name.

In addition to the above methods, we can also view the current username by using the "whoami" command. The "whoami" command will return the username of the currently logged in user, and is also a commonly used method to view the current username. The following is a code example using the "whoami" command:

whoami

Enter the above command in the terminal, and the system will return the current login user name to help users quickly obtain relevant information. Through these two methods, readers can easily view the current user name, improving work efficiency and system management convenience.

In summary, knowing how to view the current user name is one of the basic operations in the Linux system. Through the two methods introduced in this article, readers can easily obtain the current user name information, which facilitates daily work and system management. I hope this article can help readers become more proficient in using Linux systems and improve work efficiency.

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