An introduction to writing Perl

Lesson 1 · On the house

Hello, Perl

Shebang, print, .pl, perl file.pl.

Lesson 2

Scalars

$name, my, undef, defined.

Lesson 3

Strings and quoting

'', "", ., x, length, chomp.

Lesson 4

Numbers and operators

+ - * /, **, comparison.

Lesson 5

Arrays

@list, $list[i], $#list, push/pop, qw.

Lesson 6

Hashes

%h, $h{key}, keys/values, exists.

Lesson 7

Conditionals

if/elsif/else, unless, defined-or //.

Lesson 8

Loops

foreach, while, for, last/next.

Lesson 9

Subroutines

sub, @_, return, my vs our.

Lesson 10

Introductory capstone

Scalar, array, hash, sub, print.