read_pipe.sh

#!/bin/bash

DEFAULT_PIPE_NAME=".plumber"
PIPE_NAME="${1:-$DEFAULT_PIPE_NAME}"

if [ ! -p $PIPE_NAME ]; then
  echo "Created pipe ${PIPE_NAME}..."
  mkfifo $PIPE_NAME
fi

echo "Waiting for commands!"

while true; do
  COMMAND=$(cat $PIPE_NAME)
  echo Running ${COMMAND}...
  sh -c "$COMMAND"
done