What is perl -d debugger in Perl?

Perl's built-in debugger, invoked with the command perl -d, allows developers to step through their code, inspect variables, and evaluate expressions as the program runs. It is an invaluable tool for troubleshooting and refining Perl programs.

How to Use the Perl Debugger

To start debugging a Perl script, simply run the following command in your terminal:

perl -d your_script.pl

In the debugger, you can use commands like:

  • p variable - Print the value of a variable.
  • n - Execute the next line of code.
  • s - Step into subroutines.
  • c - Continue execution until next breakpoint.

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