#!/usr/bin/bash
# Chain together n steps of test_cdbp 
# Usage cdb_chain n
# First step takes stdin, intermediate steps use FIFOs, last step goes to stdout
export PYTHONPATH=~/lib/python/cc/lmh
n=$1
mkfifo from0
cat | { cdbp.sh 0 > from0 ; } &
seq 1 $((n - 2)) | while read i ; do
 mkfifo from$i
 cdbp.sh $i < from$((i - 1)) > from$i &
 rm $from$((i - 1))
done
cdbp.sh $((n - 1)) < from$((n - 2))
rm from$((n - 2))