Lamp is a Unix-like environment that runs in a single process (via threads) on traditional Mac OS, including standard I/O, vfork/exec, a shell, perl, sockets, virtual fs with /dev and /proc, signals, and ptrace(). Runs on 68K/PPC, and on OS X as Carbon.
A logging shell that can log commands from a shell. Designed to act as an automated lab-book for people that conduct experiments in their standard shell environments. Users can log and re-run experiments with little/no manual effort or interference.