How to show vertical line to wrap the line in Vim?

Question

I\'m interested in finding a way to show a vertical line at column 80 in Vim (not GVim).

I\'ve used set wrap, but I just want to show a vertical line so I c

Answer 1

I use match ErrorMsg '\%>80v.\+' which will highlight anything over 80 chars with red.

I put that command in my python.vim and ruby.vim under ~/.vim/after/ftplugin/.