Combine

Combine is a simple little program I wrote that 'combines' files, so that reads will read from whichever file happens to have data ready.

You can download the code and the man page if you happen to want someting similar. Here's the man page (from man2html) :

     NAME
          combine - creates a fifo that when read from merges reads
          from passed files

     SYNOPSIS
          combine fifo filename...

     DESCRIPTION
          combine creates (or uses an existing) fifo which acts as a
          merging of the given files. Each read from the fifo will
          result in a read from one of the passed files.

          Was created to make my laptop more usable. X uses /dev/mouse
          to read ps2 mouse data. /dev/mouse is actually a fifo
          created by combine (combine /dev/mouse /dev/psaux
          /dev/usb/mouse0) which allows me to use both the built in
          and usb mouse which might be attached. Since XFree86 natively
          supports multiple input devices it's not needed, but at the
          time I didn't know...

     OPTIONS
          There aren't any at the moment.

     BUGS
          Errors on system calls should be handled, as opposed to
          ignores.

          The fifo name should be an option not an argument.