Is there a static analysis tool like Lint or Perl::Critic for shell scripts?

Question

Are there any shell (specifically bash or ksh) checkers that test shell scripts for style, best practices, naming conventions, etc? (Something like Lint for C, or Perl::Cri

Answer 1

I wrote shlint to wrap checkbashims and the other basic linting options available to shells presented in Brian's answer.

It's installable via rubygems (gem install shlint) as sort of a gag, really, but you only need perl (for checkbashims) and a POSIX compliant shell to interpret the shlint command itself. Should work out of the box on OSX and Ubuntu.