Unlink+Open: File creation timestamp problem

Rantanplan has asked for the wisdom of the Perl Monks concerning the following question:

Hello,

I am having a very strange problem with the combination of unlink and open:

my $myfile1 = 'D:\mypath\myfile1';
my $myfile2 = 'D:\mypath\myfile2';

use strict;
use warnings;

unlink $myfile1;

my $myhandle;
unlink $myfile2;
open $myhandle, '>', $myfile2;
close $myhandle;
[download]

As expected, myfile1 gets deleted.

As expected, myfile2 gets erased. It contains 0 Bytes.

However, the creation date and time of myfile2 does not get set to the time the script runs. The new myfile2 has the creation date and time of the old myfile2.

Why is this so?? And what can I do that the open command sets the creation date as expected to the time at which the command is executed at?

Comment on Unlink+Open: File creation timestamp problem Download Code

Replies are listed 'Best First'.
Re: Unlink+Open: File creation timestamp problem by huck (Prior) on Feb 23, 2017 at 02:01 UTC
https://blogs.msdn.microsoft.com/oldnewthing/20050715-14/?p=34923/ "One of the file system features you may find yourself surprised by is tunneling, wherein the creation timestamp and short/long names of a file are taken from a file that existed in the directory previously" Re: How to change file creation date? `use Win32API::File::Time qw{:win}; my ($fwatime, $fwmtime, $fwctime) = GetFileTime ($fromfn); SetFileTime ($tofn, $fwatime, $fwmtime, $fwctime);` [download]	[reply] [d/l]
Re^2: Unlink+Open: File creation timestamp problem by NetWallah (Canon) on Feb 23, 2017 at 03:49 UTC
Wow - an interesting story of a cringe-worthy hack. Reminds me of The Space Shuttle and the Horse's Rear End. ...it is unhealthy to remain near things that are in the process of blowing up. man page for WARP, by Larry Wall	[reply]
Re^2: Unlink+Open: File creation timestamp problem by Rantanplan (Novice) on Feb 24, 2017 at 09:49 UTC
Thank you, very much appreciated!!	[reply]