Trigger queue

This is a simple script that watches a directory for certain files and triggers actions based on what's in there. This is primarily for doing RPC between an unprivileged user and a privileged program.

So, if you wanted to restart sendmail, an unprivileged user could touch "restartsendmail" in a certain directory, and if this script were so configured, it would restart sendmail, then remove the "restartsendmail" file from that directory, indicating that it was complete.

I suppose a message bus could also do this. Dang.