The following projects are remnants of bygone age.
shmux is program for executing the same command on many hosts in parallel. For each target, a child process is spawned by shmux, and a shell on the target obtained one of the supported methods: rsh, ssh, or sh. The output produced by the children is received by shmux and either output in turn to the user, or written to files for later processing.
shush runs a command and optionally reports its output by mail. It is a powerful wrapper around cron jobs.