Upload and download files from local PC
========================================

Below are different methods to upload and download files to/from Purdue AF.

-  **Drag-and-drop**

   For `single files only`, you can drag-and-drop a file from local file
   browser into the file browser area of JupyterLab interface, or in the
   opposite direction.

-  **"Upload" button**

   There is an "upload" icon ( ⬆️ ) at the top of the JupyterLab browser.
   It also works only for single files.

-  **Download as an archive**

   Downloading a directory from Purdue AF as an archive is possible from the
   right-click menu. There are two options:

   - "Download as an Archive" - applies to the directory on which you clicked;
   - "Download Current Folder as an Archive" - applies to the directory open
     in the JupyterLab browser.

   Be careful: choosing the wrong option may result in downloading a very large
   file.

-  **File exchange from command line**

   SSH access to Purdue AF is :doc:`possible <guide-ssh-access>`, however,
   ``scp`` commands will not work for this address.

   In order to move files via ``scp``, you need to establish a
   connection in the opposite direction:
   **SSH from Purdue AF into your local machine.**

   - **macOS**: `Enable "Remote Login" <https://support.apple.com/guide/mac-help/allow-a-remote-computer-to-access-your-mac-mchlp1066/mac>`_.
   - **Ubuntu:** `Remote SSH access instructions <https://help.ubuntu.com/stable/ubuntu-help/sharing-secure-shell.html.en>`_.
   - **Windows:** `Remote SSH access instructions <https://learn.microsoft.com/en-us/windows-hardware/manufacture/desktop/factoryos/connect-using-ssh?view=windows-11>`_.
  
   Other operating systems should have a similar setting.