Delete folders with many files quickly in WinSCP

This is based on the WinSCP "Useful commands" page entry for "delete" with some important missing steps added.

These steps you only need to do once:

1. Right-click some test directory to delete
2. Choose Custom commands > Customize
3. Click the "Add" button
4. Under "Description" give it a name of your choice, like "Delete"
5. Under "Custom command" you have a choice:
   • Do you want a confirmation box to pop up? If so, enter: test "!?Do you really want to delete ?no!" == "yes" && rm -rf !&
   • Do you want it to just instantly delete? If so, enter: rm -f -r "!"
6. Tick the "Apply to directories" checkbox
7. Hit "Okay". You now have a "Delete" option under "Custom commands" any time you right-click a file or folder.

You can now delete any file or folder instantly with this new custom command. It might take a few seconds to reconnect the first time you do this in a session

Another solution is writing e.g. a PHP script and invoking the deletion from there: https://stackoverflow.com/questions/3338123

This will also allow you to delete a folder with essentially native code execution speed instead of the horrendous network overhead when deleting each individual file/folder.