This is just a general idea. You'll probably need to adjust the validation options in order for it to work. 
#!/usr/bin/perl

use strict;
use warnings;
use MongoDB;
use DateTime;

my $today = DateTime->now;
my $stamp = DateTime->now->set(
    'timestamp' => $today->day,
);

my $database = '/tmp/collection';
$database->update(
    {'host' => '127.0.0.1'},
    {'set' => {"timestamp" => 'new'}},
    {'multiple' => 1, 'safe' => 1}
);

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In reply to Re: MongoDB replacing an array by Khen1950fx
in thread MongoDB replacing an array by neilwatson

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