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Perl: More on Lists and Hashes

Welcome to the first part of what should be the final two articles in our series on working with hashes and lists in Perl. This makes our eleventh article in the series and in it, we will wrap up the intermediate ways of working with hashes and lists. We'll learn to add rows and columns to a two-dimensional list, replace them, create multi-dimensional lists, and write hashes and files to lists, then open and read from those same files over the next two articles.

Perl: Another Round with Hashes

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Perl: A Continuing Look at Hashes and Multidimensional Lists

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Beginner's Introduction to Perl 5.10, Part 2

A Beginner's Introduction to Perl 5.10 talked about the core elements of Perl: variables (scalars, arrays, and hashes), math operators and some basic flow control (the

Learn to use the openssl command-line program

It can be used to create, request, sign, and revoke certificates and can also be used to perform other cryptographic operations such as creating hashes for files, testing SSL connections, and more. This week, we'll take a look at some of the interesting things that can be done with the openssl command-line program.

Simple Arithmetic In Bash, Perl and Awk--More Porting

"Today we're going to continue along on our series of posts dealing with porting code between the bash shell, Perl and awk. In previous posts, we've looked at the basics regarding simple string variables, simple one-dimensional arrays and associative arrays (sometimes referred to as hashes or 'lookup tables').

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