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  1. or download this
    A="foo"
B="some other data"
...
  with more data
  and $B
"
  2. or download this
    #!/bin/bash -

...
export C
export D
./foo.pl
  3. or download this
    #!/usr/bin/perl

...
    $env->{$val} = $ENV{$var};
  }
}
  4. or download this
    #!/bin/env perl

...
my $content = do { local $/ = <$fh> };
my $stuff = parse_sh_maint(parse_sh($content), [qw/scalar1 scalar2/]);
print "Vars: " . Dumper($stuff), "\n";