# BackendTool The BackendTool is intended to provide commandline access to the remote destination. This can be used to create remote folders, locate remote files, and fetch remote files. The BackendTool is called `Duplicati.CommandLine.BackendTool.exe` on Windows and `duplicati-backend-tool` on Linux and MacOS. The basic usage for the tool is: ``` duplicati-backend-tool [filename] ``` There are 5 supported commands: GET, PUT, DELETE, LIST, CREATEFOLDER. The GET, PUT, and DELETE commands will download, upload, and delete a file, respectively. The filename parameter refers to the remote filename and will be matched to a local filename. It is not possible to have different filenames on the remote and local system with this operation. Note that any change to the remote storage will likely required a recreate of the [local database](https://docs.duplicati.com/database-and-storage/the-local-database). The LIST command will simply list all files found on the remote location and has no side-effects. The CREATEFOLDER command can be used to created folders in preparation for making a backup or moving files. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.duplicati.com/duplicati-programs/command-line-interface-cli-1/backendtool.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.