Still some apps seem to have problems with unicode terminals/output. I am looking for a app (or script) which prints out some unicode formated text and line drawing (like ncurses). Thus help to figure out if the app is broken or the (terminal/env/ssh-client) settings are wrong. Which app does this and is most likely to be installed on a linux system?
Just create a text file with some Unicode characters and use that as your testcase. You can then use
If you want more details, give us a specific example you're considering.