C:\>perl -v This is perl 5, version 18, subversion 2 (v5.18.2) built for MSWin32-x64-multi-thread (with 1 registered patch, see perl -V for more detail) Copyright 1987-2013, Larry Wall Binary build 1801 [297964] provided by ActiveState http://www.ActiveState.com Built Feb 24 2014 11:06:47 Perl may be copied only under the terms of either the Artistic License or the GNU General Public License, which may be found in the Perl 5 source kit. Complete documentation for Perl, including FAQ lists, should be found on this system using "man perl" or "perldoc perl". If you have access to the Internet, point your browser at http://www.perl.org/, the Perl Home Page. C:\>perl test.pl 1 ### Running a perl script ### 0s : Thread 0 - > Creating threads 0s : Thread 1 - Created 0s : Thread 2 - Created 0s : Thread 3 - Created 1s : Thread 0 - All Threads created 1s : Thread 0 - > Waiting for input now. All system commands should finish without pressing enter 3s : Thread 2 - Starting 'perl -e "print \"hello world\""' 3s : Thread 3 - Starting 'perl -e "print \"hello world\""' 3s : Thread 1 - Starting 'perl -e "print \"hello world\""' 68s : Thread 0 - > Input received, all done 68s : Thread 1 - Finished the command: hello world 68s : Thread 2 - Finished the command: hello world 68s : Thread 3 - Finished the command: hello world 68s : Thread 0 - All Threads joined