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=head1 NAME
Env - Perl module that imports environment variables
=head1 DESCRIPTION
Perl maintains environment variables in a pseudo-associative-array
named %ENV. For when this access method is inconvenient, the Perl
module C<Env> allows environment variables to be treated as simple
variables.
The Env::import() function ties environment variables with suitable
names to global Perl variables with the same names. By default it
does so with all existing environment variables (C<keys %ENV>). If
the import function receives arguments, it takes them to be a list of
environment variables to tie; it's okay if they don't yet exist.
After an environment variable is tied, merely use it like a normal variable.
You may access its value
@path = split(/:/, $PATH);
or modify it
$PATH .= ":.";
however you'd like.
To remove a tied environment variable from
the environment, assign it the undefined value
undef $PATH;
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