An associative array is an array which uses strings as indices instead of integers. To see how associative arrays work, we’re going to look at both the Korn shell and Perl, though only the newest ...

I believe that line dereferences the array reference and creates a new array with the same 10,000 contents. With your recursive calls to quicksort, that probably eats up memory fast. There does not ...

Perl is a language often associated with text processing and CGI. PHP is a language often associated with dynamic Web pages. Both are very popular with Web developers. Often, each of these languages ...

Here’s a trick that I learned recently that allows me to combine a string of arguments into a single variable. In my case, this was necessitated by a script that I was preparing to help analyze ...

Command-line Perl scripts can make adminstering a UNIX box easier by replacing certain commands with some routine scripts. Find out how to take advantage of this approach. Perl is everywhere. Most ...