#!/bin/sh

export PATH=""

if [ $# -ne 2 ]; then
  echo 1>&2 "Usage: $0 <seconds> <file>";
  exit 127
fi

SECS=$[ $1 + 0 ]

if [ "$SECS" -lt 1 ]; then
  echo 1>&2 "error: seconds must be a positive integer"
  exit 127
fi

if [ ! -f "$2" ]; then
  echo 1>&2 "error: invalid file $2"
  exit 127
fi

NOW=`/bin/date +%s`
FILE=`/usr/bin/stat -c '%Z' "$2"`
FILEAGE=$[ $NOW - $FILE ]

if [ "$FILEAGE" -lt "$SECS" ]; then
  /bin/cat "$2"
fi