An interview with Jeffrey Ryan Thalhammer

Thursday, 5 December

by David Farrell

Learn about the tools Jeffrey uses to code in Perl, upcoming Stratopan features and more!

Tags:

community culture stratopan cloud saas interview

More from Perltricks

Implementing the singleton pattern in Perl


Wednesday, 11 December

by David Farrell

Learn when and how to use this classic "gang of four" code pattern

Use roles in object oriented Perl with Role::Tiny


Monday, 11 November

by David Farrell

Roles are a label for a set of methods that a class provides. Similar to traits in Smalltalk or an interface in Java, adding a Perl role to a class is like adding a guarantee that the class will implement that role's API. Roles are an alternative to inheritance; instead of extending a class hierarchy through subclassing, a programmer composes a class using roles for what the class does. This article describes how by using the Role::Tiny module you can imbue native Perl object oriented code with roles.

Understanding the modulo operator


Monday, 4 November

by David Farrell

The behavior of the modulo operator ("%") can catch programmers by surprise as it is often misunderstood to provide the remainder of an arithmetic division operation. This article reviews the modulo operator behavior and provides an arithmetic division solution.

How to redirect and restore STDOUT


Sunday, 27 October

by David Farrell

STDOUT is the Perl filehandle for printing standard output. Unless a filehandle is specified, all standard printed output in Perl will go to the terminal. Because STDOUT is just a global variable, it can be redirected and restored. Want to implement logging on a program without changing every print statement in the source code? Want to capture the standard output of a perl CRON job? Read on.

Find CPAN mirrors and configure the local CPAN mirror list


Sunday, 20 October

by David Farrell

CPAN mirrors are online repositories which host or "mirror" the Perl module distributions on CPAN. There are hundreds of CPAN mirrors dispersed throughout the World. When the CPAN program is run for the first time on a machine, it will configure the CPAN mirror list to use for checking for new versions of modules and downloading Perl distributions. All CPAN mirrors are not created equally though: the distribution list's age, speed and the geographic location vary from mirror to mirror and so you may want to re-configure your local CPAN mirror list to suit your needs. This article describes how to find CPAN mirrors and edit the local CPAN mirror configuration.

How to schedule Perl scripts using cron


Friday, 11 October

by David Farrell

Cron is a job scheduling program available on UNIX-like platforms. Most system commands can be scheduled including the execution of Perl programs. Once a job is setup, cron will run it as scheduled even if the user is not logged in, which can be a great way to automate sysadmin tasks or repetitive jobs. This article describes how to run Perl scripts with cron.

How to read a string into an array of characters using split


Thursday, 3 October

by David Farrell

Perl's split function has a useful feature that will split a string into characters. This works by supplying an empty regex pattern ("//") to the split function. This can be used to easily split a word into an array of letters, for example:

How to benchmark Perl code for speed


Sunday, 29 September

by David Farrell

Benchmarking Perl code speed is easy with the Benchmark module. This article discusses benchmarking in general and how to use the Benchmark module.

Get detailed Perl version configuration information


Friday, 27 September

by David Farrell

Most Perl programmers know they can find out the current Perl version by typing "perl -v" as the command line:

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