Tools for zmodem/xmodem/ymodem file transfer
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Lrzsz is a cosmetically modified zmodem/ymodem/xmodem package built from the public-domain version of Chuck Forsberg's rzsz package.

These programs use error correcting protocols ({z,x,y}modem) to send (sz, sx, sb) and receive (rz, rx, rb) files over a dial-in serial port from a variety of programs running under various operating systems.
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dpurgert 4 years ago

Perfect for when you absolutely have to get that config file across a serial connection