This shell utility is for up/downloading files via your ax25 unix login
session which is managed by axspawn.
you need a //BIN compatible axspawn, which has the functionality of making
the stream 8bit compatible (normally the EOL-conversion <LF> <-> <CR>
prevents this). see:
  http://x-berg.in-berlin.de/cgi-bin/viewcvs.cgi/ampr/patches/linux-ax25/

The location of these sources is
  http://x-berg.in-berlin.de/cgi-bin/viewcvs.cgi/ampr/axgetput/

Since 2006-12-10, axgetput is part of the ax25-tools (s. linux-ax25.org).