Exercises, examples and other material relating to training module P251. This topic is presented on public courses Using Perl on the Web
, Perl for Larger Projects
, Perl Extra
Everyone who attends a typical advanced training course has a different background. Typically, they'll be strong in most of the fundamentals but may have a few niggling questions or aspects that they're about weak on. This module fast-tracks through the fundamentals of Perl. During presentation, the tutor will take time to cover in a little more depth any subjects that warrant such extra coverage for the group of students on the particular course.
|Articles and tips on this subject
|Sigils - the characters on the start of variable names in Perl, Ruby and Fortran
A sigil (from Latin sigillum "seal") is a symbol created for a specific magical purpose. A sigil is usually made up of a complex combination of several specific symbols or geometric figures, each with a specific meaning or intent. In computer programming, a sigil is a special symbol attached to a variable ...
|Perl - a quick reminder and revision. Test yourself!
At the start of the second day of my second Perl course this week (yes, really!!) I put up a quick revision of what I had covered on the first day for my not - really - new - to - Perl group. How many of these things are you familiar with?
Don't forget to comment your code!
- # to end ...
|Least Common Ancestor - what is it, and a Least Common Ancestor algorithm implemented in Perl
Imagine you have a tree - a series of leaves which join together as you head towards the root into bigger and bigger branches. The "Least Common Ancestor" is the point at which the branches from two leaves you have chosen come together. In computing, such a tree structure is very common - files and ...
|Setting up a matrix of data (2D array) for processing in your program
When you're reading and processing data, it often comes in the form of a series of records, with each record being split into a series of fields, and you'll often want to be going through the data several times, looking at different rows and colums, sorting them, comparing them, and so on. If the amount ...
|So what is this thing called Perl that I keep harping on about?
"An overview of the Perl Language"
It almost sound like one of those dreaded school essays that I had to write in my several attempts to get an English "O" level (they were the things that came before GCSEs) ... but these days I enjoy writing. No - this little article is one of a decreasing number ...
Examples from our training material
| simple class
| Using a simple class
| Lists and refrences
| References, lists, hashes, multidimensional structures
| Various variable types in Perl
Some modules are available for download
as a sample of our material or under an Open Training Notes License
for free download from [here]
Topics covered in this module
Basic program structure.
Blocks, conditionals and loops.
Lists and Hashes.
Input and Output.
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