This is on SCO 5.0.5, but should be the same on Solaris I think.

if you want to copy to a dos system.

doscp <filename> a:<filename>

for a unix system

tar cvf /dev/fd0 <filename>

however the device name /dev/fd0 may not be the correct one on your system.

for more details, type

man tar

or

man doscp

for the manual entries for these commands.