.. -*- coding: utf-8; -*-
.. include:: HEADER.rst

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 Perl.
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.. contents::
   :local:

Print stack trace in Perl.
==========================
::

  use Devel::StackTrace;
  my $trace = Devel::StackTrace->new;
  print $trace->as_string; # like carp

Print execution trace in Perl.
==============================

``Devel::Trace`` print out each line before it is executed (like ``sh -x``).