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Udpcast:

http://www.udpcast.linux.lu/

Can do this and other related useful things, including multicast of a file to N machines in parallel. Don't let the UDP bother you: it implements retry/checksum/etc on top of datagrams.

It's been around a few years, and is probably already in your distro.

It can pipe, as well as copy files, I wrote about it some time ago:

http://kylecordes.com/2008/multicast-your-db-backups-with-ud...

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This is great tool and nice article. The only slightly additional requirement for this tool is you know the name of the file being sent. I actually was thinking of making this optional (for the same reasons they require it, to allow many different files).

I've added a link for udpcast to my readme as an alternative. Thanks!

There's also UFTP, it doesn't require the receiver to know the file name. (But it is different from your implementation in a number of ways, most importantly it transfers all data via UDP.)

http://www.tcnj.edu/~bush/uftp.html

And it's multicast, which saves a lot of bandwidth and makes it faster :-)

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