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Perl in a Nutshell

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V [pkg [vars]]

Displays all (or some) variables in package pkg using a data pretty-printer (which displays keys and their values for hashes, makes control characters printable, prints nested data structures in a legible fashion, and so on). pkg defaults to the main package. Make sure you enter the identifiers without a type specifier such as $ or @, like this:

V DB filename line
In place of a variable name, you can use ~pattern or !pattern to print existing variables whose names either match or don't match the specified regular expression.

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