graceful-shutdown

Learn to unblock epoll_wait or kevent for graceful shutdown in Go event loops. Use eventfd, self-pipe like Go runtime and evio. Handle signals, drain connections in epoll server or kqueue setups.

Handle SIGINT gracefully in Node.js TypeScript CLI apps using Commander.js. Finish database updates, per-item calculations, flush stdout/stderr logs, and ensure shell prompt returns only after complete shutdown—no more lost logs or early prompts.