magic wormhole

Have you ever needed to quickly send a file, directory, or even some text from one computer to another? Maybe you don’t have SSH set up, or any way of using rsync/scp. If you are talking to a friend and want to quickly send them a file there are many ways of doing it but I think Magic Wormhole is one of the quickest (after setup). Once installed you can issue a send command and be presented with an “short and human-pronounceable” code which you use with the receive command on the other computer.

The code can be found on Github and the documentation on Read the Docs.

Magic Wormhole may be available in your package manager or you can install from pip. These are the steps I took to setup.

First I created a python virtual environment then installed the magic-wormhole package

python3 -m virtualenv /path/to/wormhole_venv
source /path/to/wormhole_venv/bin/activate
(wormhole_venv) pip install magic-wormhole
(wormhole_venv) deactivate

To make my life a little easier I created a link to the wormhole command in a directory in my $PATH

ln -s /path/to/wormhole_venv/bin/wormhole ~/bin/wormhole

Now I can send a file to a friend

wormhole send funny.jpg

Sending 254.7 kB file named 'funny.jpg'
Wormhole code is: 2-hemisphere-ruffled
On the other computer, please run:

wormhole receive 2-hemisphere-ruffled

Wormhole waits for the transfer to take place. On my friend’s computer they can receive the file

wormhole receive 2-hemisphere-ruffled
Receiving file (254.7 kB) into: funny.jpg
ok? (Y/n): Y
Receiving (->tcp:
100%|████████████████████████████████████████| 255k/255k [00:00<00:00, 1.77MB/s]
Received file written to funny.jpg

My send is now complete

Sending (<-
100%|████████████████████████████████████████| 255k/255k [00:00<00:00, 54.1MB/s]
File sent.. waiting for confirmation
Confirmation received. Transfer complete.

This is a one time only code and the wormhole is only open for the duration of the transfer.

You can also send arbitrary text

wormhole send --text "hello friend"

The great thing about this tool is that you don’t need any prior credentials or connection to the system like you would with SSH. It is also possible to run your own Mailbox server if you so desire.

Thanks to Brian Warner (twitter/github) for Magic Wormhole.

Category: hint

Tags: magic wormhole send receive transfer python