fifos by themselves aren't useful if you're trying to do multi-process signaling with them, as input from multiple programs is not separated or delimited in any

fifos by themselves aren't useful if you're trying to do multi-process signaling with them, as input from multiple programs is not separated or delimited in any way. fifodirs are a nice signalling mechanism built on top of fifos: http://www.skarnet.org/software/s6/fifodir.html http://www.skarnet.org/software/s6/fifodir.html