Hi Kenneth, On Wednesday 31 Mar 2010 11:34:37 CHAN, KENNETH 1 [AG/7721] wrote: > Hi all, > I have 2 simple questions (maybe be very trial): > 1. I saw some code put "umask 022;" in the near beginning of perl > script. I understand that umask is for changing the file permission in > unix/linux. However, if I put "umask 002" in the beginning of a perl > script, after execution, the file permission is not changed to 002. So > what is the purpose of using this command in perl since it does not > change the actual file permission?
Actually, the umask affects permissions of the files created in the future, such as with http://perldoc.perl.org/functions/open.html . See: http://en.wikipedia.org/wiki/Umask > 2. I tried the simple example in the GD.pm documentation: > http://search.cpan.org/~lds/GD-2.35/GD.pm > Perl shows me the errors on the line of "print $im->png;": Can't locate > object method "png" via package "GD::Image" ..... > The perl version in the server is: v5.8.8 > What is the problem? And how should I debug it? > Thanks in advance. Since the "use GD;" did not fail, I guess you have GD.pm but the GD distribution was not installed properly. The GD distribution should work on perl-5.8.8, although perl-5.8.8 is pretty old (and buggy). What is your OS, distro, how-did-you-install-perl, etc.? Maybe you've missed some C libraries when installing the GD distribution (such as libpng). Regards, Shlomi Fish > > Regards, > Kenneth > -- ----------------------------------------------------------------- Shlomi Fish http://www.shlomifish.org/ Rethinking CPAN - http://shlom.in/rethinking-cpan Deletionists delete Wikipedia articles that they consider lame. Chuck Norris deletes deletionists whom he considers lame. Please reply to list if it's a mailing list post - http://shlom.in/reply . -- To unsubscribe, e-mail: beginners-unsubscr...@perl.org For additional commands, e-mail: beginners-h...@perl.org http://learn.perl.org/
