Neither Date::Manip nor Date::Calc deal with Julian days. Instead,
there is an example of Julian date calculation that should help you in
-http://www.perl.com/CPAN/authors/David_Muir_Sharnoff/modules/Time/JulianDay.pm.gz
-.
+Time::JulianDay (part of the Time-modules bundle) which can be found at
+http://www.perl.com/CPAN/modules/by-module/Time/.
+
=head2 How do I find yesterday's date?
sub is_numeric { defined &getnum }
-Or you could check out
-http://www.perl.com/CPAN/modules/by-module/String/String-Scanf-1.1.tar.gz
-instead. The POSIX module (part of the standard Perl distribution)
-provides the C<strtol> and C<strtod> for converting strings to double
+Or you could check out String::Scanf which can be found at
+http://www.perl.com/CPAN/modules/by-module/String/.
+The POSIX module (part of the standard Perl distribution) provides
+the C<strtol> and C<strtod> for converting strings to double
and longs, respectively.
=head2 How do I keep persistent data across program calls?