Comments on: Modifying a File Without Changing Its Timestamp

By: William Ward

William Ward — Thu, 25 Jan 2007 23:46:49 +0000

Thanks Mike.

By: Mike Gent

Mike Gent — Thu, 25 Jan 2007 23:36:42 +0000

The change permission isn’t allowed in Windows do to how Perl requests access to file handles. This problem is solved with the module Win32API::File::Time on CPAN.

By: William Ward

William Ward — Fri, 01 Dec 2006 23:26:06 +0000

You’re right. It’s the “change” permission that Windows systems don’t track. I realized that just the other day when teaching a class, in fact. I had forgotten that I had posted that here though.

By: anonymous

anonymous — Fri, 01 Dec 2006 23:13:53 +0000

You’ve mentioned windows systems don’t keep track of access times for the native file system, this is not true, infact by default access times are tracked but in certain configurations this can be turned off to speed up file system access.

The -A file test operator returns the access time.

this dir command list access times
perl -le “print `dir /TA`”

–Shalom
perl -e ‘$,=$”,$_=(split/\W/,$^X)[y[eval]]]+–$_],print+just,another,split,hack’er