ffsend: A fully featured Firefox Send command line client
send is nice but my favorite tool by far in this category is magic wormhole<p><a href="https://magic-wormhole.readthedocs.io/en/latest/welcome.html" rel="nofollow">https://magic-wormhole.readthedocs.io/en/latest/welcome.html</a><p>it only relies on a third party for a handshake rather than storing files online, so there's no limit to what you can send and it's probably less likely to go away.