I'm trying to search for files that contain a certain sequence that includes a left parenthesis. I can't find the right magic sequence to do this. I've reduced the problem to its basic element -- find files that contain a left parenthesis. The files I'm searching are all C source files, so left parens abound. Yet the find function returns no matches. I've tried '(' by itself (without the quotes). I've tried '('. I've tried '(('. No luck with any of them.
Any ideas on how to find '(' in a text file?