Can't locate DBI.pm

问题:

I'm trying to launch this script:

#!/usr/bin/perl   use DBI;  my $dbh = DBI->connect( 'dbi:Oracle:host=lonlin2;sid=TIMFX1AD;port=1524','xbsesdbo','xbsesdbo123' )  || die ( $DBI::errstr . "\n" );  my $query= "SELECT * FROM product_elements WHERE element_id = 1001"; my $queryHandler= $dbh->prepare($query);  my $result= $queryHandler->execute();   open(fileHandler,"> note.txt");  print fileHandler "Risultato query: $result\n";  my $e= $dbh->disconnect(); close(fileHandler); 

When I launch this script I receive this error:

Can't locate DBI.pm in @INC (@INC contains: /opt/perl_32/lib/5.8.3/IA64.ARCHREV_0-thread-multi /opt/perl_32/lib/5.8.3 /opt/perl_32/lib/site_perl/5.8.3/IA64.ARCHREV_0-thread-multi /opt/perl_32/lib/site_perl/5.8.3 /opt/perl_32/lib/site_perl /opt/perl_32/lib/vendor_perl/5.8.3/IA64.ARCHREV_0-thread-multi /opt/perl_32/lib/vendor_perl/5.8.3 /opt/perl_32/lib/vendor_perl .) at ./prova.pl line 3.

I've got all installed!! DBI.pm is installed !!

回答1:

If you have root, type in console (Debian/Ubuntu):

sudo apt-get install libdbi-perl 

回答2:

If you don't have active perl (and hence don't have ppm), you can also get DBI like this:

perl -MCPAN -e 'install DBI' 

You may need to install drivers for Postgres like this:

perl -MCPAN -e 'install DBD::Pg' 

回答3:

DBI isn't in your @INC path, which tells perl where to look for custom modules. This is probably because you've installed them using the cpan tool as a non-root user, which won't have write access to the default include paths.

You will need to locate DBI.pm and other packages, and move them into your @INC path.

Alternatively, find the packages you've installed and add the install path into your library path, for one time use:

PERL5LIB=/path/to/modules perl yourscript.pl 

And for a more permanent solution, add this to ~/.bashrc:

export PERL5LIB=/path/to/modules 

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