Perl for Beginners: Learn A to Z of Perl Scripting Hands-on

Define and use scalar variables in Perl with a dollar sign to store numbers and strings. Explore how single versus double quotes affect interpolation and escaping for command-line input.

Explore perl string manipulation with index to locate substrings, length to count characters, substring to extract data, concatenation to join elements, plus case conversions and defined checks.

Explore perl operators from relational and string comparisons to logical, bitwise, and assignment operators, plus increment, decrement, concatenation, and left/right shifts.

Explore array basics in Perl by learning zero-based indexing, retrieving values with square brackets, and working with ranges, sizes, and maximum indices.

Explore in-built array functions in Perl, including sort, join, map, slicing, indexing, unique, and undef, through hands-on examples that show memory storage and practical data manipulation.

Explore built-in Perl array functions such as push, unshift, shift, and splice, and learn how to modify arrays, update elements, and manage indexing.

Learn how to traverse arrays in Perl, access elements with indices or for each, use loops to print values, and understand array length and indices.

Learn to define, access, and modify Perl hashes as key-value stores, compare them with arrays, and use curly braces and dereference to update values with practical examples.

Explore the built-in hash functions in Perl, including keys, values, hash size, lazy slicing, deleting entries, and checking existence with exists.

Learn to traverse a hash, access keys and their values, and print results using for each and the each function.

Explore Perl conditional structures and loops, showing how if and not govern flow and how a condition is evaluated, then repeated with for and foreach over hashes and elements.

Explore how while and do loops evaluate conditions in Perl, compare different conditional forms, and work through practical examples from less than 10 to not equal.

Explore how break and continue control flow in Perl loops, using for loops to print numbers, handle inner and outer loops, and reset execution when conditions are met.

Explore regular expressions in Perl, using match and not-match operators, anchors, and special characters to extract data. Learn greedy vs non-greedy matching and character classes to build robust patterns.

Master regular expressions through escape sequences, character classes, and basic symbols to match digits, words, and whitespace, using anchors for start and end positions.

Explore using regular expressions in Perl to match the start and end of strings and capture patterns. Learn about word boundaries, grouping with parentheses, and $1 and $2.

Master regular expressions in perl by exploring choices, quantifiers like plus and {1,4}, and positive and negative lookahead; learn substitution with the s operator and delete with d.

Explore how to declare and call subroutines in Perl, understand forward references and argument handling, and manage scope and definitions for effective scripting.

Explore Perl subroutines by calling one function from another, returning multiple values, and printing results, with practical examples of passing and collecting data within nested functions.

Explore subroutines in perl by handling arrays and hashes, passing by value or reference, and dereferencing with backslashes and the dereference operator, plus using keys to access hash values.

Explore in Perl, including autoload handling of undefined functions and package scope, with begin and end blocks shaping program flow.

Master Perl variable scoping, including local, my, global, static, and dynamic scope, and use the scope resolution operator to access package variables and import modules.

This lecture covers Perl file handling, showing how to open a file, verify success, read lines or the whole file, and write or close files with a file descriptor.

Master Perl file handling by embedding data with __DATA__, reading and printing file contents, validating command-line arguments, using file test operators, and navigating with seek and tell.

Explore hard references and symbolic references, and learn to create and dereference hashes, anonymous hashes, and arrays in Perl.

Learn how to dereference symbolic references in perl, including their use with hashes and arrow notation. Avoid using symbolic references and instead use references to prevent errors and mischief.