ftp  ftp.host1.com
> login
> ftp> proxy open ftp.host2.com
> login host2
> ftp> proxy put public_html/myfile.html public_html/blah.html  (will copy
> myfile.html on host1 to host2 as blah.html)
> ftp> exit
>
>
Correction:

ftp ftp.host1.com
login
ftp>proxy open ftp.host2.com
login host2
ftp> proxy get public_html/myfile.html public_html/blah.html  (Don't know
how that ended up as 'put', sorry for the mistake)
ftp> exit