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The most simple type of variable in Perl are single value variables called scalers. They are used for numbers or single strings of text. Their names should begin with “$”.

In Perl, you should declare your variables the first time you use them. For example:

my $year = 2019;

If you are assigning a string (e.g. text), the string must be placed in quotes:

my $city = "Nairobi";

Arrays are used for variables that contain multiple values. In Perl, arrays should begin with “@”, for example:

my @fruits = ("apple", "banana", "orange");

Arrays are referenced by item number (starting with 0):

print @fruits[1];

will display:

banana

 

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