#!/bin/bash

cmd=$(echo ${@})

time_buffer=3

rm -f buf

now=$(date +%s)
ts=$d
while read contents
do
  echo $contents >> buf

  # echo now=$now, ts=$ts
  if (($ts + $time_buffer < $now))
  then
    ts=$now
    echo "$d Buf size: " $(wc -l buf) >/dev/stderr
    $cmd < buf
    rm buf
  fi
  now=$(date +%s)
done

echo "$d Buf size: " $(wc -l buf) >/dev/stderr
$cmd < buf
rm buf