s/\$ENV{(\w+)}/$ENV{$1}/ge;

[download]

That doesn't solve the 'problem' of wanting to have a literal '$ENV{X}' kept unchanged for some reason. That seems unlikely enough of a desire that I'm not sure I'd even do anything about it. Though I might prevent substitution if no such environment var is set: 

s/\$ENV{(\w+)}/ exists $ENV{$1} ? $ENV{$1} : "\$ENV{$1}" /ge;

[download]

- tye        

In reply to Re: What's the best way to convert a non interpolated single-quoted string into an interpolated double-quoted string? (smor) by tye
in thread What's the best way to convert a non interpolated single-quoted string into an interpolated double-quoted string? by emilbarton

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