Debugging live apps – SIGQUIT for the win

Example SIGQUIT stack trace from mb-util rubygem Hey there, everyone! This is just a quick post to share a debugging technique I&rsquo;ve found useful and that I recently added to mb-util . Today I&rsquo;m talking about using SIGQUIT to trigger some kind of debugging action in an application, such as opening a REPL or logging a stack trace. The reason SIGQUIT is useful is that most terminals will…