On Thu, Mar 8, 2012 at 12:40 PM, David Christensen <dpchr...@holgerdanske.com> wrote: > On 03/07/2012 08:41 AM, lina wrote: >> $ ./substr_accessing_examples.pl >> Undefined subroutine&main::subst called at >> ./substr_accessing_examples.pl line 15. > > > On 03/07/2012 09:02 AM, Brock wrote: >> I think you mean 'substr' instead of 'subst'. > > Typographic errors are maddening; I make them all the time... > > > A drawback with online documentation is that you need to know the right > question and how/ where to ask it. The Search box of the Perl Programming > Documentation web site was able to find the substr function given the > subroutine name from the above error message (the part that follows > "&main::"): > > http://perldoc.perl.org/search.html?q=subst > > > An advantage of good, printed books is that they have a Table of Contents > and an Index. Do you have the three books I suggested?
Thanks David, I started from the second book, perl cookbook. 2nd edition. I only read till 15 pages, progressed so slow, and sometimes choked by understanding the "pack". really hard for me to understand it, so I just skip. meanwhile I also did some search. It's really a long long journey. Best wishes, > > http://www.mail-archive.com/beginners%40perl.org/msg113268.html > > > David > > > > -- > To unsubscribe, e-mail: beginners-unsubscr...@perl.org > For additional commands, e-mail: beginners-h...@perl.org > http://learn.perl.org/ > > -- To unsubscribe, e-mail: beginners-unsubscr...@perl.org For additional commands, e-mail: beginners-h...@perl.org http://learn.perl.org/
