P:\test>perl -v This is perl, v5.8.2 built for MSWin32-x86-multi-thread (with 25 registered patches, see perl -V for more detail) Copyright 1987-2003, Larry Wall Binary build 808 provided by ActiveState Corp. http://www.ActiveState.com ActiveState is a division of Sophos. Built Dec 9 2003 10:19:40 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.com/, the Perl Home Page. P:\test>perl -de1 Loading DB routines from perl5db.pl version 1.22 Editor support available. Enter h or `h h' for help, or `perldoc perldebug' for more help. main::(-e:1): 1 DB<1> ($a,b) = chop Can't modify constant item in list assignment at (eval 5)[c:/Perl/lib/perl5db.pl:618] line 2, at EOF DB<2>