One of the strengths of Perl is that data types are very loose, and can change form. Thus programming variables can hold more than one type and shape of data, including numbers or strings. If you write prototype code to test out ideas, you can often temporarily assume that your input data is of the […]

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Most Perl books start with a “Hello, World” tutorial. That’s probably the simplest example to start with for most programming languages. But finding out how many parameters are in the commandline to a Perl script is also simple, and very important to most of the tutorials on this site.

I should note beforehand that some Perl […]

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