Extended end of day one demonstration

Introduction example from a Well House Consultants training course
More on Introduction [link]

This example is described in the following article(s):
• Are you learning Perl? Some more examples for you! - [link]

Source code: pex2 Module: P201

=head1

This is an extended end of day one demonstration that shows
newcomers to Perl how a short piece of code, using techniques
taught in the first half of the course (but not necessarily
the first day) and provide really fast and effecive reporting.

=cut

open (DOORKNOB,"ac_20100624") or die $!;

while (<DOORKNOB>) {
        $owmany++;
        @parts = split;
        $counter{$parts[8]+0}++;
}

print ("There were $owmany lines in that!\n");
foreach $k (sort keys (%counter)) {
        if ($k < 100) {
                print ("I have found $counter{$k} broken lines\n");
        } else {
                print ("There were $counter{$k} status $k -s\n");
        }
}

__END__

Dorothy-2:j10p grahamellis$ perl pex2
There were 158284 lines in that!
I have found 3 broken lines
There were 150471 status 200 -s
There were 116 status 206 -s
There were 53 status 301 -s
There were 53 status 302 -s
There were 5294 status 304 -s
There were 1 status 337 -s
There were 79 status 400 -s
There were 1628 status 403 -s
There were 559 status 404 -s
There were 21 status 408 -s
There were 6 status 500 -s
Dorothy-2:j10p grahamellis$

Learn about this subject

This module and example are covered on the following public courses:
* Deploying LAMP - Linux, Apache, MySQL, Perl/PHP
* Linux Web Server
* Perl Programming
* Perl bootcamp
* Learning to program in Perl
* Perl Programming
Also available on on site courses for larger groups

Books covering this topic

Yes. We have over 700 books in our library. Books covering Perl are listed here and when you've selected a relevant book we'll link you on to Amazon to order.

Other Examples

This example comes from our "Introduction" training module. You'll find a description of the topic and some other closely related examples on the "Introduction" module index page.

Full description of the source code

You can learn more about this example on the training courses listed on this page, on which you'll be given a full set of training notes.

Many other training modules are available for download (for limited use) from our download centre under an Open Training Notes License.

Other resources

• Our Solutions centre provides a number of longer technical articles.
• Our Opentalk forum archive provides a question and answer centre.
• The Horse's mouth provides a daily tip or thought.
• Further resources are available via the resources centre.
• All of these resources can be searched through through our search engine
• And there's a global index here.

Purpose of this website

This is a sample program, class demonstration or answer from a training course. It's main purpose is to provide an after-course service to customers who have attended our public private or on site courses, but the examples are made generally available under conditions described below.

Web site author

This web site is written and maintained by Well House Consultants.

Conditions of use

Past attendees on our training courses are welcome to use individual examples in the course of their programming, but must check the examples they use to ensure that they are suitable for their job. Remember that some of our examples show you how not to do things - check in your notes. Well House Consultants take no responsibility for the suitability of these example programs to customer's needs.

This program is copyright Well House Consultants Ltd. You are forbidden from using it for running your own training courses without our prior written permission. See our page on courseware provision for more details.

Any of our images within this code may NOT be reused on a public URL without our prior permission. For Bona Fide personal use, we will often grant you permission provided that you provide a link back. Commercial use on a website will incur a license fee for each image used - details on request.