Perl과 wget으로 측정하는 웹페이지 응답시간

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#!/usr/bin/perl
use Time::HiRes qw(gettimeofday);
$argnum = $# + 1;
if ($argnum < 1)
{
  print "Usage : $0 [URL]\n";
  exit(0);
}
$URL = @ARGV[0];
$MSG = @ARGV[1];
my($sec, $msec) = gettimeofday();
open(FD,"wget -p $URL -O /tmp/test.html 2>&1 |") || die "Error";
$status = 1;
while($line = <FD>)
{
  if($line =~ m/failed:/)
  {
    $status = 0;
  }
  if ($line =~ m/ERROR/)
  {
    $status = 0;
  }
}
my($csec, $cmsec) = gettimeofday();
if ($status)
 
 
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