Assuming that you are doing a telnet to the unix box from the dos prompt, I suggest that you can use aliases. Aliases are nothing but a shortcut key to the commands for e.g

l='ls -l'
c=clear
bin='cd /usr/bin'

After this being set when you type l it will list the files in the directory. When you type 'c' it will clear the screen. This you can set up in your .profile file. This file you can see it in your home directory. If not available you can create one. Hope this helps