What is the best command-line tool to clean up code?

Question

When I\'m writing C - code I solely use an editor and gcc. I was wondering if anyone could suggest a good and simple tool that will find unused variables, function declarati

Answer 1

Lint is the classic tool for checking style on C programs. There's more modern incarnation of it called Splint. This Wikipedia entry has a list of static code analysis tools, some free, some commercial.