How to write in a command line in unicode?

Question

Say I have a file that has an Armenian or Russian name. How can I write that file name in command line in order to open it. And not only for this purpose in general I want to know how can I write in terminal with unicode?

My OS is Vista.

Answer 1

You can enter arbitrary unicode anywhere, it's just a question of how cumbersome it might be.

http://www.fileformat.info/tip/microsoft/enter_unicode.htm

Method 1: Universal

This method works regardless of any of your language settings, but is the most cumbersome to type.

1. Press and hold down the alt key.
2. Press the + key on the numeric keypad.
3. Type the hexadecimal unicode value.
4. Release the alt key.

More methods at the above link. And see related SU question:
http://superuser.com/questions/13086/how-do-you-type-unicode-characters-using-hexadecimal-codes