Question: I would like to know if there is any easy way to print multiple emails(about 200) so that they continue on as opposed to printing one per page. I have tried with thunderbird and evolution and this does not seem possible. Would concatenating the individual mail files work or are there other unix utilities that could do this? WOuld sed or awk be suited for this?

Answer: 
Perl makes it pretty easy with the [Email::Abstract](http://search.cpan.org/~rjbs/Email-Abstract-2.134/lib/Email/Abstract.pm) module. Give the following script (maildump) a list of emails to dump out and then pipe it all into lpr... 

maildump m1 m2 m3 m4 | lpr

```

#!/usr/bin/perl

use Email::Abstract;

while ($mfile = shift @ARGV)
{
    open(DATA, "<$mfile") || die "unable to open $mfile";

    my $message = do { local $/; <DATA>; };

    my $email = Email::Abstract->new($message);

    my $subject = $email->get_header("Subject");
    my $from = $email->get_header("From");
    my $date = $email->get_header("Date");
    my $body = $email->get_body;

    print "SUBJECT: $subject\nFROM: $from\nDATE: $date\n\n$body\n\n";
    print "-" x 65, "\n" if $#ARGV > 0;
}

```
If you're wanting to filter emails then I suggest finding where the data is stored and scripting a solution at that level. 

On my Windows box, Thunderbird stores my Inbox in a rather large-ish file at 

> 
> C:\Documents and Settings\Bruce Axtens\Application Data\Thunderbird\Profiles\x5j9chtd.default\Mail\Local Folders\Inbox
> 
> 
> 

I don't know where \*n\*x stores yours: perhaps in a hidden folder in your root directory. E.g.

> 
> /home/josh/.thunderbird
> 
> 
> 

Parsing raw email data is not for the faint hearted (though [Wikipedia](http://en.wikipedia.org/wiki/Email) has a good article on email which would get you started in the right direction.) 

For the rest of us (me included), there are lots of scripting resources to do the hack work for you, while you craft your solution. If found [this](http://www.perl.com/lpt/a/846) as a good place to start for Perl. Others may be able to suggest libraries for other languages.