Binary package “pipexec” in ubuntu disco

create a directed graph of processes and pipes

 pipexec creates an arbitrary network (directed graph) of processes and
 pipes in between - even cycles are possible.
 It overcomes the short comings of shells that are typically only able
 to create non cyclic trees.
 pipexec also monitors all its child processes and is able to restart
 the whole network of processes and pipes if one crashes.
 Therefore pipexec can be used in SYSV-init or systemd configuration to
 run a network of processes.
 The package also contains two tools 'ptee' and 'peet' which are the piped
 version of the 'tee' and 'eet' (reverse tee) commands.