You can also use regex, if you know the format the interspersed variables will be in. For instance: 
$ENV{VARIABLE} = '/base/path';
$_ = '$ENV{VARIABLE}/my/path';

s/\$ENV\{(\w+?)\}/$ENV{$1}/g;
print;

[download]
Or even the following, if you don't mind breaking some rules: 
$ENV{VARIABLE} = '/base/path';
$path = 'path';
$_ = '$ENV{VARIABLE}/my/$path';

s/\$(\w+)\{(\w+?)\}/${$1}{$2}/g;
s/\$(\w+)/${$1}/g;
print;

[download]

In reply to Re: String Interpolation on single quote string? by TedPride
in thread String Interpolation on single quote string? by cjbailey1

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