/usr/share/doc/libnet-snmp-perl/examples/example4.pl is in libnet-snmp-perl 6.0.1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 | #! /bin/env perl
# ============================================================================
# $Id: example4.pl,v 6.0 2009/09/09 15:05:32 dtown Rel $
# Copyright (c) 2008-2009 David M. Town <dtown@cpan.org>
# All rights reserved.
# This program is free software; you may redistribute it and/or modify it
# under the same terms as the Perl 5 programming language system itself.
# ============================================================================
use strict;
use warnings;
use Net::SNMP;
my $OID_sysUpTime = '1.3.6.1.2.1.1.3.0';
my $OID_sysContact = '1.3.6.1.2.1.1.4.0';
my $OID_sysLocation = '1.3.6.1.2.1.1.6.0';
# Hash of hosts and location data.
my %host_data = (
   '10.1.1.2'  => 'Building 1, Second Floor',
   '10.2.1.1'  => 'Building 2, First Floor',
   'localhost' => 'Right here!',
);
# Create a session for each host and queue a get-request for sysUpTime.
for my $host (keys %host_data) {
   my ($session, $error) = Net::SNMP->session(
      -hostname    => $host,
      -community   => 'private',
      -nonblocking => 1,
   );
   if (!defined $session) {
      printf "ERROR: Failed to create session for host '%s': %s.\n",
             $host, $error;
      next;
   }
   my $result = $session->get_request(
      -varbindlist => [ $OID_sysUpTime ],
      -callback    => [ \&get_callback, $host_data{$host} ],
   );
   if (!defined $result) {
      printf "ERROR: Failed to queue get request for host '%s': %s.\n",
             $session->hostname(), $session->error();
   }
}
# Now initiate the SNMP message exchange.
snmp_dispatcher();
exit 0;
sub get_callback
{
   my ($session, $location) = @_;
   my $result = $session->var_bind_list();
   if (!defined $result) {
      printf "ERROR: Get request failed for host '%s': %s.\n",
             $session->hostname(), $session->error();
      return;
   }
   printf "The sysUpTime for host '%s' is %s.\n",
           $session->hostname(), $result->{$OID_sysUpTime};
   # Now set the sysContact and sysLocation for the host.
   $result = $session->set_request(
      -varbindlist =>
      [
         $OID_sysContact,  OCTET_STRING, 'Help Desk x911',
         $OID_sysLocation, OCTET_STRING, $location,
      ],
      -callback    => \&set_callback,
   );
   if (!defined $result) {
      printf "ERROR: Failed to queue set request for host '%s': %s.\n",
             $session->hostname(), $session->error();
   }
   return;
}
sub set_callback
{
   my ($session) = @_;
   my $result = $session->var_bind_list();
   if (defined $result) {
      printf "The sysContact for host '%s' was set to '%s'.\n",
             $session->hostname(), $result->{$OID_sysContact};
      printf "The sysLocation for host '%s' was set to '%s'.\n",
             $session->hostname(), $result->{$OID_sysLocation};
   } else {
      printf "ERROR: Set request failed for host '%s': %s.\n",
             $session->hostname(), $session->error();
   }
   return;
}
# ============================================================================
 |