From the dsh manpage:
BUGS There should be a dcp for copying files to remote systems.
We present a dcp script to fill that need.
Usage
dcp source [source [source ...]] target
Copies source file(s) to target, which may be a file or directory. By default, dcp uses dsh -a but this may be over-written with the DSHARGS environment variable. More info within the code.