You can get it at vim.org: http://www.vim.org/scripts/script.php?script_id=2880
This vim syntax file is made for the rc for unix port. Though I think it will also be helpful for rc on plan9 since the syntax is quite similar. The bugs of rc on plan9 I can think of: * 'not' in 'if not' won't highlighted * 'else' should not be highlighted * `followded by a word should not be highlighted * minor issues regarding with $^foo and $"foo (maybe) Besides those bugs, it should works fine on a plan9 rc. (I am just guessing since I cannot reach a plan9 system.) And these bugs can be fixed easily by editing a few regex.
