How to Add a File Using CMD Line. One of the useful features of the Windows Command Prompt (also known as CMD, CMD line or Command line) is creating, or adding, a text file to the current directory.

Learn how to copy files using Command Prompt (copy and xcopy). You can also use parameters to perform some specific tasks while copying.

Click the "Download" button and click "Save" in the prompt that appears to begin downloading the file through the proxy server.