You need a text editor for the X window system
UTF8 or UTF16 files are becoming more common
You can install the Yudit editor for editing unicode files. The main page of the yudit project ist found at http://www.yudit.org/ and is included in most distributions.
About the Author
Wim Peeters is electronics engineer with an additional master in IT and over 30 years of experience including time spent in support, development, consulting, training and database administration. Wim has worked with SQL Server since version 6.5. He has developed in C/C++, Java and C# on Windows and Linux in different European countries and different European languages. He writes knowledge base articles to solve IT problems and publishes them on the Lubby Knowledge Platform where he is one of the most important contributors and the main developer.