#!/usr/bin/perl
package Hello;
use Exporter;
@ISA = ('Exporter');
@EXPORT = ('hello');

sub hello {
  print "Hello, world\n";
}
1;

##</code><code>##

#!/usr/bin/perl
use Hello;
hello();

##</code><code>##

C:\GSDBVTAS\GSDBVTMAIN>perl hello.pl
Can't locate Hello.pm in @INC (@INC contains: C:/Perl/lib C:/Perl/site/lib .) at
 hello.pl line 3.
BEGIN failed--compilation aborted at hello.pl line 3.