Perl: Extracting date from file name and comparing with current date Post: 302178942

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LEARN ABOUT DEBIAN

email::date

Email::Date(3pm)					User Contributed Perl Documentation					  Email::Date(3pm)

NAME

       Email::Date - Find and Format Date Headers

SYNOPSIS

	 use Email::Date;

	 my $email = join '', <>;
	 my $date  = find_date($email);
	 print $date->ymd;

	 my $header = format_date($date->epoch);

	 Email::Simple->create(
	     header => [
		 Date => $header,
	     ],
	     body => '...',
	 );

DESCRIPTION

       RFC 2822 defines the "Date:" header. It declares the header a required part of an email message. The syntax for date headers is clearly
       laid out. Stil, even a perfectly planned world has storms. The truth is, many programs get it wrong. Very wrong. Or, they don't include a
       "Date:" header at all. This often forces you to look elsewhere for the date, and hoping to find something.

       For this reason, the tedious process of looking for a valid date has been encapsulated in this software. Further, the process of creating
       RFC compliant date strings is also found in this software.

   FUNCTIONS
       find_date
	     my $time_piece = find_date $email;

	   "find_date" accepts an email message in any format Email::Abstract can understand. It looks through the email message and finds a date,
	   converting it to a Time::Piece object.

	   If it can't find a date, it returns false.

	   "find_date" is exported by default.

       format_date
	     my $date = format_date; # now
	     my $date = format_date( time - 60*60 ); # one hour ago

	   "format_date" accepts an epoch value, such as the one returned by "time".  It returns a string representing the date and time of the
	   input, as specified in RFC 2822. If no input value is provided, the current value of "time" is used.

	   "format_date" is exported by default.

       format_gmdate
	     my $date = format_gmdate;

	   "format_gmdate" is identical to "format_date", but it will return a string indicating the time in Greenwich Mean Time, rather than
	   local time.

	   "format_gmdate" is exported on demand, but not by default.

PERL EMAIL PROJECT

       This module is maintained by the Perl Email Project

       <http://emailproject.perl.org/wiki/Email::Date>

SEE ALSO

       Email::Abstract, Time::Piece, Date::Parse, perl.

AUTHOR

       Casey West, <casey@geeknest.com>.

       Ricardo SIGNES, <rjbs@cpan.org>.

COPYRIGHT

	 Copyright (c) 2004 Casey West.  All rights reserved.
	 This module is free software; you can redistribute it and/or modify it
	 under the same terms as Perl itself.

perl v5.10.1							    2007-12-01							  Email::Date(3pm)

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Comparing two files with datestamp to current date

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