Here's a couple of examples. The first script logs and runs the second script which uses Net::SFTP.

#!/usr/bin/perl

use strict;
use warnings;

open(LOG, '>', 'LOG_FILE') or die "Can't open stdout: $!";
open(CMD, 'perl sftp_script.pl');
open(STDERR, '>&', STDOUT) or die "Can't redirect stderr: $!";
open(STDERR, '>', 'LOG_FILE') or die "Can't redirect stderr: $!";
print "LOG_FILE\n";
while (<CMD>) {
    print_stuff ($_);
}

sub print_stuff {
      my ($line) = @_;
      print LOG $line;  
      print $line;
}

close(CMD) or die "close CMD failed: $!";

exit 0;
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#sftp_script.pl

#!perl 

use strict;
use warnings;
use Net::SFTP;

my $host = 'localhost';
my $user = 'user';
my $password = 'password';

my %args = ( user      => $user,
             password  => $password,
             port      => 22, 
             debug     => 1,
);

my $local  = '/path/to/some/file';
my $remote = '/path/to/remote_dir/file';

my $sftp = Net::SFTP->new($host, %args);
die "Can't put file: $!\n" unless 
$sftp->put($local, $remote);
close $local;
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It's a one-step process for installing Net::SFTP. Just do cpan Net::SFTP

Update: To install Net::SSH::Perl, do it manually as:

perl Makefile.PL machine=none
make install
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