#!/bin/bash

cat blank.txt idle.txt skeleton.txt | \
  sort | \
    awk '
      BEGIN {i=0}
      {
        if($1!=i)
        {
          printf "\r\n%s",$0
          i=$1
        }
        else
	{
          a=$0
          sub("^ *[0-9]* *","",a)
          printf " %s",a
	}
      }
      END {printf "\r\n"}
    '