That code is another way of saying: 

my $REFRESH = 10;
GetOptions(
"refresh=i" => \$REFRESH,
......
);

[download]

You can think of the my as both representing and declaring the lexical variable(s) in question.

update: The reason it's a =i and not a :i is that the =i makes the number mandatory after the option, but not the option.

In reply to Re: "Getoptions'" argument syntax by wog
in thread "Getoptions'" argument syntax by nysus

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