Using TRF for File transfer With a Braille Lite

Teresa Cochran vegaspipistrelle at
Wed Nov 18 22:02:31 UTC 2009

Intriguing. Ok, I'll definitely look that up.


On 11/18/2009 1:51 PM, Chris Brannon wrote:
> Teresa Cochran wrote
>> could someone give me a pointer or two, please? I'd like to set up a
>> transfer for ymodem protocol, USB-to-serial device, braille Lite 40.
> I don't know what TRF is, but when I owned a BNS, I used a
> pair of tools named rb and sb.  They are in a package named lrzsz.
> The package may be named something slightly different by your distro.
> Anyway, sb sends files via ymodem to the unit, and rb receives files.
> The lrzsz suite includes similar programs for the xmodem and zmodem protocols.
> All are documented by manpages, and usage is straightforward.
> They work well with shell accounts, too.  That was my earliest means
> of Internet access: a BNS connected to a remote Unix box, via a 2400 baud
> modem.
> -- Chris
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