Perl – How to start an interactive console for Perl

consoleinteractiveperlread-eval-print-loop

How can I start an interactive console for Perl, similar to the irb command for Ruby or python for Python?

You can use the perl debugger on a trivial program, like so:

perl -de1

Alternatively there's Alexis Sukrieh's Perl Console application, but I haven't used it.

Executing following code from the browser address bar:

javascript: console.log(2);

successfully prints message to the "JavaScript Console" in Google Chrome.

As you mentioned, you can do a system call:

For Windows:

>>> import os
>>> clear = lambda: os.system('cls')
>>> clear()

For Linux it would be:

>>> import os
>>> clear = lambda: os.system('clear')
>>> clear()