[PERL] problema con connessione ssh

[bobby1112]

salve ragazzi sto realizzando uno scriptin perl con il modulo Net::SSH::Perl

    $host="localhost";$user="root";$password="passwd";
    chomp($host);chomp($user);chomp($pass);
    my $ssh = Net::SSH::Perl->new($host);
    $ssh->login($user, $pass);
    my($stdout, $stderr, $exit) = $ssh->cmd($cmd);

mi restituisce questo errore

Can't locate Math/Pari.pm in @INC (@INC contains: /etc/perl /usr/local/lib/perl/5.10.1 /usr/local/share/perl/5.10.1 /usr/lib/perl5 /usr/share/perl5 /usr/lib/perl/5.10 /usr/share/perl/5.10 /usr/local/lib/site_perl .) at /usr/local/share/perl/5.10.1/Net/SSH/Perl/Util/SSH2MP.pm line 6, <GEN0> line 1.
BEGIN failed--compilation aborted at /usr/local/share/perl/5.10.1/Net/SSH/Perl/Util/SSH2MP.pm line 6, <GEN0> line 1.
Compilation failed in require at /usr/local/share/perl/5.10.1/Net/SSH/Perl/Util.pm line 56, <GEN0> line 1.
BEGIN failed--compilation aborted at /usr/local/share/perl/5.10.1/Net/SSH/Perl/Kex/DH1.pm line 10, <GEN0> line 1.
Compilation failed in require at /usr/local/share/perl/5.10.1/Net/SSH/Perl/Kex.pm line 6, <GEN0> line 1.
BEGIN failed--compilation aborted at /usr/local/share/perl/5.10.1/Net/SSH/Perl/Kex.pm line 6, <GEN0> line 1.
Compilation failed in require at /usr/local/share/perl/5.10.1/Net/SSH/Perl/SSH2.pm line 6, <GEN0> line 1.
BEGIN failed--compilation aborted at /usr/local/share/perl/5.10.1/Net/SSH/Perl/SSH2.pm line 6, <GEN0> line 1.
Compilation failed in require at /usr/local/share/perl/5.10.1/Net/SSH/Perl.pm line 52, <GEN0> line 1.

help me !!!!!!!!!!!!!!!!!!!!!!!

[bobby1112]

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