Hi:
How can I separate the undef data and NULL data?
the following code work ok for undef/null data but Iwon't know which one is undef and which is null they all print out " ".
so how can I print out the "NULL" with "NULL"
and '' with "undef"?
I try this code work for "NULL" but not for "undef":
[cacti@cacti other]$ perl cacti.pl
id local_data_template_data_idlocal_data_iddata_template_iddata
+_input_idt_name name name_cachedata_source_patht_active acti
+ve t_rrd_steprrd_step t_rra_id
3 0 0 3 2 on |host_desc
+ription| - Hard Drive Space NULL on
+ 300
4 0 0 4 1 |host_desc
+ription| - CPU Usage - System NULL on
+ 300
5 0 0 5 1 |host_desc
+ription| - CPU Usage - User NULL on
+ 300
6 0 0 6 1 |host_desc
+ription| - CPU Usage - Nice NULL on
+ 300
7 0 0 7 2 on |host_desc
+ription| - Noise Level NULL on 300
+
8 0 0 8 2 on |host_desc
+ription| - Signal Level NULL on 30
+0
9 0 0 9 2 on |host_desc
+ription| - Wireless Transmits NULL on
+ 300
10 0 0 10 2 on |host_desc
+ription| - Wireless Re-Transmits NULL on
+ 300
11 0 0 11 4 |host_desc
+ription| - Load Average NULL on 30
+0
13 0 0 13 6 |host_desc
+ription| - Memory - Free NULL on 3
+00
15 0 0 15 6 |host_desc
+ription| - Memory - Free Swap NULL on
+ 300
16 0 0 16 7 |host_desc
+ription| - Processes NULL on 300
+
17 0 0 17 5 |host_desc
+ription| - Logged in Users NULL on
+ 300
18 0 0 18 10 |host_desc
+ription| - Ping Host NULL on 300
+
19 0 0 19 1 |host_desc
+ription| - Total Users NULL on 300
+
20 0 0 20 1 |host_desc
+ription| - Total Logins NULL on 30
+0
22 0 0 22 1 |host_desc
+ription| - File System Reads NULL on
+ 300
23 0 0 23 1 |host_desc
+ription| - File System Writes NULL on
+ 300
24 0 0 24 1 |host_desc
+ription| - Cache Checks NULL on 30
+0
25 0 0 25 1 |host_desc
+ription| - Cache Hits NULL on 300
+
26 0 0 26 1 |host_desc
+ription| - Open Files NULL on 300
+
27 0 0 27 1 |host_desc
+ription| - 5 Minute CPU NULL on 30
+0
30 0 0 30 1 |host_desc
+ription| - Load Average - 1 Minute NULL on
+ 300
31 0 0 31 1 |host_desc
+ription| - Load Average - 5 Minute NULL on
+ 300
32 0 0 32 1 |host_desc
+ription| - Load Average - 15 Minute NULL on
+ 300
33 0 0 33 1 |host_desc
+ription| - Memory - Buffers NULL on
+ 300
34 0 0 34 1 |host_desc
+ription| - Memory - Free NULL on 3
+00
35 0 0 35 2 on |host_desc
+ription| - Volumes NULL on 300
+
36 0 0 36 2 on |host_desc
+ription| - Directory Entries NULL on
+ 300
37 0 0 37 11 on |host_desc
+ription| - Hard Drive Space NULL on
+ 300
38 0 0 38 2 on |host_desc
+ription| - Errors/Discards NULL on
+ 300
39 0 0 39 2 on |host_desc
+ription| - Unicast Packets NULL on
+ 300
40 0 0 40 2 on |host_desc
+ription| - Non-Unicast Packets NULL on
+ 300
41 0 0 41 2 on |host_desc
+ription| - Traffic NULL on 300
+
55 0 0 42 2 |host_desc
+ription| - CPU Utilization NULL on
+ 300
56 0 0 43 12 |host_desc
+ription| - Hard Drive Space NULL on
+ 300
57 0 0 44 12 |host_desc
+ription| - CPU Utilization NULL on
+ 300
58 0 0 45 1 |host_desc
+ription| - Processes NULL on 300
+
59 0 0 46 1 |host_desc
+ription| - Logged in Users NULL on
+ 300
62 13 3 13 6 NULL|host_descriptio
+n| - Memory - FreeLocalhost - Memory - Free<path_rra>/localhost_mem_b
+uffers_3.rrdNULLon NULL300 NULL
63 15 4 15 6 NULL|host_descriptio
+n| - Memory - Free SwapLocalhost - Memory - Free Swap<path_rra>/local
+host_mem_swap_4.rrdNULLon NULL300 NULL
64 11 5 11 4 NULL|host_descriptio
+n| - Load AverageLocalhost - Load Average<path_rra>/localhost_load_1m
+in_5.rrdNULLon NULL300 NULL
65 17 6 17 5 NULL|host_descriptio
+n| - Logged in UsersLocalhost - Logged in Users<path_rra>/localhost_u
+sers_6.rrdNULLon NULL300 NULL
66 16 7 16 7 NULL|host_descriptio
+n| - ProcessesLocalhost - Processes<path_rra>/localhost_proc_7.rrdNUL
+Lon NULL300 NULL
68 0 0 47 1 |host_desc
+ription| - Memory - Cache NULL on
+300
69 0 0 48 1 on |host_desc
+ription| - NULL on 300
+
70 0 0 49 0 10 minutes
+ NULL on 600
71 70 8 49 0 NULL10 minutes10 min
+utes/var/www/cacti_rrd/MMS/Daily/CDR_TOTAL_901S902M905S906WAPENC.rrdN
+ULLon NULL600 NULL
72 70 9 49 0 NULL10 minutes10 min
+utes/var/www/cacti_rrd/MMS/Daily/CDR_TOTAL_901R902M905S906FOREIGNOPTU
+S.rrdNULLon NULL600 NULL
[cacti@cacti other]$
my database:
INSERT INTO data_template_data (id, local_data_template_data_id, local
+_data_id, data_template_id, data_input_id, t_name, name, name_cache,
+data_source_path, t_active, active, t_rrd_step, rrd_step, t_rra_id) V
+ALUES
(3, 0, 0, 3, 2, 'on', '|host_description| - Hard Drive Space', '', N
+ULL, '', 'on', '', 300, ''),
(4, 0, 0, 4, 1, '', '|host_description| - CPU Usage - System', '', N
+ULL, '', 'on', '', 300, ''),
(5, 0, 0, 5, 1, '', '|host_description| - CPU Usage - User', '', NUL
+L, '', 'on', '', 300, ''),
(6, 0, 0, 6, 1, '', '|host_description| - CPU Usage - Nice', '', NUL
+L, '', 'on', '', 300, ''),
(7, 0, 0, 7, 2, 'on', '|host_description| - Noise Level', '', NULL,
+'', 'on', '', 300, ''),
(8, 0, 0, 8, 2, 'on', '|host_description| - Signal Level', '', NULL,
+ '', 'on', '', 300, ''),
(9, 0, 0, 9, 2, 'on', '|host_description| - Wireless Transmits', '',
+ NULL, '', 'on', '', 300, ''),
(10, 0, 0, 10, 2, 'on', '|host_description| - Wireless Re-Transmits'
+, '', NULL, '', 'on', '', 300, ''),
(11, 0, 0, 11, 4, '', '|host_description| - Load Average', '', NULL,
+ '', 'on', '', 300, ''),
(13, 0, 0, 13, 6, '', '|host_description| - Memory - Free', '', NULL
+, '', 'on', '', 300, ''),
(15, 0, 0, 15, 6, '', '|host_description| - Memory - Free Swap', '',
+ NULL, '', 'on', '', 300, ''),
(16, 0, 0, 16, 7, '', '|host_description| - Processes', '', NULL, ''
+, 'on', '', 300, ''),
(17, 0, 0, 17, 5, '', '|host_description| - Logged in Users', '', NU
+LL, '', 'on', '', 300, ''),
(18, 0, 0, 18, 10, '', '|host_description| - Ping Host', '', NULL, '
+', 'on', '', 300, ''),
(19, 0, 0, 19, 1, '', '|host_description| - Total Users', '', NULL,
+'', 'on', '', 300, ''),
(20, 0, 0, 20, 1, '', '|host_description| - Total Logins', '', NULL,
+ '', 'on', '', 300, ''),
(22, 0, 0, 22, 1, '', '|host_description| - File System Reads', '',
+NULL, '', 'on', '', 300, ''),
(23, 0, 0, 23, 1, '', '|host_description| - File System Writes', '',
+ NULL, '', 'on', '', 300, ''),
(24, 0, 0, 24, 1, '', '|host_description| - Cache Checks', '', NULL,
+ '', 'on', '', 300, ''),
(25, 0, 0, 25, 1, '', '|host_description| - Cache Hits', '', NULL, '
+', 'on', '', 300, ''),
(26, 0, 0, 26, 1, '', '|host_description| - Open Files', '', NULL, '
+', 'on', '', 300, ''),
(27, 0, 0, 27, 1, '', '|host_description| - 5 Minute CPU', '', NULL,
+ '', 'on', '', 300, ''),
(30, 0, 0, 30, 1, '', '|host_description| - Load Average - 1 Minute'
+, '', NULL, '', 'on', '', 300, ''),
(31, 0, 0, 31, 1, '', '|host_description| - Load Average - 5 Minute'
+, '', NULL, '', 'on', '', 300, ''),
(32, 0, 0, 32, 1, '', '|host_description| - Load Average - 15 Minute
+', '', NULL, '', 'on', '', 300, ''),
(33, 0, 0, 33, 1, '', '|host_description| - Memory - Buffers', '', N
+ULL, '', 'on', '', 300, ''),
(34, 0, 0, 34, 1, '', '|host_description| - Memory - Free', '', NULL
+, '', 'on', '', 300, ''),
(35, 0, 0, 35, 2, 'on', '|host_description| - Volumes', '', NULL, ''
+, 'on', '', 300, ''),
(36, 0, 0, 36, 2, 'on', '|host_description| - Directory Entries', ''
+, NULL, '', 'on', '', 300, ''),
(37, 0, 0, 37, 11, 'on', '|host_description| - Hard Drive Space', ''
+, NULL, '', 'on', '', 300, ''),
(38, 0, 0, 38, 2, 'on', '|host_description| - Errors/Discards', '',
+NULL, '', 'on', '', 300, ''),
(39, 0, 0, 39, 2, 'on', '|host_description| - Unicast Packets', '',
+NULL, '', 'on', '', 300, ''),
(40, 0, 0, 40, 2, 'on', '|host_description| - Non-Unicast Packets',
+'', NULL, '', 'on', '', 300, ''),
(41, 0, 0, 41, 2, 'on', '|host_description| - Traffic', '', NULL, ''
+, 'on', '', 300, ''),
(55, 0, 0, 42, 2, '', '|host_description| - CPU Utilization', '', NU
+LL, '', 'on', '', 300, ''),
(56, 0, 0, 43, 12, '', '|host_description| - Hard Drive Space', '',
+NULL, '', 'on', '', 300, ''),
(57, 0, 0, 44, 12, '', '|host_description| - CPU Utilization', '', N
+ULL, '', 'on', '', 300, ''),
(58, 0, 0, 45, 1, '', '|host_description| - Processes', '', NULL, ''
+, 'on', '', 300, ''),
(59, 0, 0, 46, 1, '', '|host_description| - Logged in Users', '', NU
+LL, '', 'on', '', 300, ''),
(62, 13, 3, 13, 6, NULL, '|host_description| - Memory - Free', 'Loca
+lhost - Memory - Free', '<path_rra>/localhost_mem_buffers_3.rrd', NUL
+L, 'on', NULL, 300, NULL),
(63, 15, 4, 15, 6, NULL, '|host_description| - Memory - Free Swap',
+'Localhost - Memory - Free Swap', '<path_rra>/localhost_mem_swap_4.rr
+d', NULL, 'on', NULL, 300, NULL),
(64, 11, 5, 11, 4, NULL, '|host_description| - Load Average', 'Local
+host - Load Average', '<path_rra>/localhost_load_1min_5.rrd', NULL, '
+on', NULL, 300, NULL),
(65, 17, 6, 17, 5, NULL, '|host_description| - Logged in Users', 'Lo
+calhost - Logged in Users', '<path_rra>/localhost_users_6.rrd', NULL,
+ 'on', NULL, 300, NULL),
(66, 16, 7, 16, 7, NULL, '|host_description| - Processes', 'Localhos
+t - Processes', '<path_rra>/localhost_proc_7.rrd', NULL, 'on', NULL,
+300, NULL),
(68, 0, 0, 47, 1, '', '|host_description| - Memory - Cache', '', NUL
+L, '', 'on', '', 300, ''),
(69, 0, 0, 48, 1, 'on', '|host_description| -', '', NULL, '', 'on',
+'', 300, ''),
(70, 0, 0, 49, 0, '', '10 minutes', '', NULL, '', 'on', '', 600, '')
+,
(71, 70, 8, 49, 0, NULL, '10 minutes', '10 minutes', '/var/www/cacti
+_rrd/MMS/Daily/CDR_TOTAL_901S902M905S906WAPENC.rrd', NULL, 'on', NULL
+, 600, NULL),
(72, 70, 9, 49, 0, NULL, '10 minutes', '10 minutes', '/var/www/cacti
+_rrd/MMS/Daily/CDR_TOTAL_901R902M905S906FOREIGNOPTUS.rrd', NULL, 'on'
+, NULL, 600, NULL);