Perl binding, or vs. ||
Perl has "||" and "or". While "or" can't be used in bit operations, either one can be used in logical flow control - but there is an important difference between them. The post Perl binding, or vs. ||...
View ArticleCreating Perl Modules for Websites
When you are writing your own code, you are more apt to use someone else's module than write your own, unless your project gets fairly large and complex. Small scripting tasks just don't need the...
View ArticlePerl Range Operator
In a list context, this operator is easy to use and understand. It is much more confusing in a scalar context, and is often badly explained in books and webpages. The post Perl Range Operator appeared...
View ArticleBuild a Perl/CGI Voting System
Many Web-deployed applications are written within elaborate database-driven server-side development frameworks such as PHP and Java™ servlets, but for simple applications (for example, where the entire...
View ArticleBit Vector, Using Perl Vec
A bit vector is just an array of bits; subsets of bits within the bytes have some meaning. That allows more compact storage for certain types of data. For example, if you only needed boolean on-off...
View ArticleCreating Perl Modules for Web Sites
When you are writing your own code, you are more apt to use someone else's module than write your own, unless your project gets fairly large and complex. Small scripting tasks just don't need the...
View ArticleBit Vector, Using Perl Vec
A bit vector is just an array of bits; subsets of bits within the bytes have some meaning. That allows more compact storage for certain types of data. For example, if you only needed boolean on-off...
View ArticleLog Script Use
How many old, unused (or under-used) CGI scripts do you have lingering on your server, taking up space? You may not be as guilty of abandoning CGI software in lieu of newer versions as we are (we've...
View ArticleRandom subroutines in Perl
I'll bet your first question might be "why on earth would I ever want to call subroutines randomly?". Admittedly, it isn't a need that comes up that often, but (for example) it's used right here on...
View ArticleTransferring Mail to a New Mail Server
Sometimes we just have to move on. Your current mail server may just not be meeting your needs, so you've put up something new. But what about old mail? If your servers are identical (Sendmail to...
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