How to write in a command in Unicode?

Question

Say I have a file that has an Armenian or Russian name. How can I write that file name in command prompt 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:
How do you type Unicode characters using hexadecimal codes?

Answer 2

Just run dir to get the file list. After that copy the needed filename and then paste into the ren command. That's the easiest solution, no need to look for the unicode value