Changes

=== Builtin operators and functions ===

=== Builtin operators and functions ===

Perl comes with a wide selection of builtin functions. Some of the ones we've already seen include '''print''', '''sort''' and '''reverse'''. A list of them is given at the start of perlfunc and you can easily read about any given function by using '''perldoc -f functionname'''.

Perl comes with a wide selection of builtin functions. Some of the ones we've already seen include '''[http://perldoc.perl.org/functions/print.html print]''', '''[http://perldoc.perl.org/functions/sort.html sort]''' and '''[http://perldoc.perl.org/functions/reverse.html reverse]'''. A list of them is given at the start of [http://perldoc.perl.org/perlfunc.html perlfunc] and you can easily read about any given function by using '''perldoc -f functionname'''.

Perl operators are documented in full in perlop, but here are a few of the most common ones:

Perl operators are documented in full in [http://perldoc.perl.org/perlop.html perlop], but here are a few of the most common ones:

==== Arithmetic ====

==== Arithmetic ====