I've used Capture::Tiny, but was not aware of Capture::Tiny::Extended. After checking it out, I'm not sure that I would use it or recommend using it at this point.

Here's what I found out when looking over both Capture::Tiny and Capture::Tiny::Extended:

• In the Description section of Capture::Tiny:Extended, the author notes that it is a fork of Capture::Tiny to add some desired functionality. The latest version of the module was released August 4, 2011. That means that it was based on version 0.11 of Capture::Tiny (released May 19, 2001) - or an earlier version of Capture::Tiny.


• According to the change log for Capture::Tiny, version 0.12 (released December 1, 2011) added functionality from Capture::Tiny::Extended (whose author was credited in the change log too).


• The latest version of Capture::Tiny is version 0.46 (released February 25, 2017). Doing a quick scan through the change log, it looks like there have been some fixes applied to deal with issues with the tee functionalities.

At this point, I would say that Capture::Tiny probably now has all of the functionality of Capture::Tiny::Extended (including the tee functionalities that the OP is interested in) and probably is implementing those functionalities better than Capture::Tiny::Extended. Of course, that's just my impression after a little bit of investigation (without doing any testing).

Just thought that I'd share what I found in case it proves useful to others.