UserParameter with awk and dollar signs

[arli]

Does anyone know how to pass a parameter to awk print column command which is defined in zabbix agent UserParameter?

I have a key
swapinfo[memory,5]

And corresponding UserParameter in zabbix_agentd.conf file
UserParameter=swapinfo[*],swapinfo -t | grep $1 | awk -F' ' '{print $2}'

... so I need this to execute
swapinfo -t | grep memory | awk -F' ' '{print $5}'

But it's either executing awk -F' ' '{print $2}' or returnes ZBX_NOTSUPPORTED
I also tried to use $$2 and \$$2 and \$\$2.

bash-4.0# swapinfo -t
             Kb      Kb      Kb   PCT  START/      Kb
TYPE      AVAIL    USED    FREE  USED   LIMIT RESERVE  PRI  NAME
dev     8388608   10676 8377932    0%       0       -    1  /dev/vg00/lvol2
dev     8388608   10556 8378052    0%       0       -    1  /dev/vg00/swap2
reserve       - 16587652 -16587652
memory  23805996 5099444 18706552   21%
total   40583212 21708328 18874884   53%       -       0    -

And no, I don't want to use wrapper script, because I have to use this feature on many servers. And maintaining those scripts means extra work.
Do you think this can be done?

[Alexei]

You may use "print $ 1" instead of "print $2" for awk scripts.

[arli]

I tried this, but it doesn't seem to work - still not printing the column 5, that is second argument on the item configuration.

In agent config file
UserParameter=swapinfo[*],swapinfo -t | grep $1 | awk -F' ' '{print $ 2}'

In agent log file
Run remote command [swapinfo -t | grep memory | awk -F' ' '{print $ 2}'] Result [8] [23805996]...

[lentyai]

Use '$1 $2' for simple user parameters like
UserParameter=param.param,cmd | awk '{print $1}'

and
use '$$1 $$2...' for parameters with parameters.
UserParameter=param[*],cmd | awk '{print $$1}'

[arli]

I also tried to use $$2 and \$$2 and \$\$2.

UserParameter=swapinfo[*],swapinfo -t | grep $1 | awk -F' ' '{print $$2}'

And result is the same - not using "parameter with parameter":
Run remote command [swapinfo -t | grep memory | awk -F' ' '{print $2}'] Result [8] [23805996]...

[lentyai]

Oh!
Sorry!

I don't understood what you want pass awk field number as parameter.

I think, it's not good idea.

[arli]

The idea was to get all the memory related values with only one user parameter - so there would be less things to add to the agent conf file.
If it turns out, that this can't be done, then I guess I'll have to use one parameter for each column.

[arli]

I actually found solution to that problem and now when I accidentally stumbled upon this old thread againt, I think it's good idea to post the solution here too

UserParameter=swapinfo[*],swapinfo -t | grep $1 | awk -F' ' "{ print $\"$2\" }"

This thread helped me:
http://stackoverflow.com/questions/2...in-bash-scriptYou need double quotes to allow variable interpolation, which means you then need to escape the other dollar signs with backslashes so $1 and $2 are not interpolated. Also you need double quotes around "$col1type".

[tobster]

UserCommand with awk no result

Hi forum

sorry to warm up this older thread but I really got a weird problem with a UserParameter which uses awk as well.
I need my zabbix-agentd to pull the pakets stats from its iptables. So I added zabbix to sudoers

zabbix	ALL=NOPASSWD:	/sbin/iptables -L INPUT 3 -nvx

then I added the following to zabbix_agentd.conf

UserParameter=ipt.pkt.stat[*],sudo /sbin/iptables -L $1 $2 -nvx|awk '{print $$1}'

But if I use zabbix_get on my zabbix server to get the data I always get an empty response

zabbix_get -s 192.168.199.130 -k ipt.pkt.stat\[INPUT,3\]

According to the zabbix-agentd logs the remote command looks fine but produces empty response

20966:20140321:192934.965 In zbx_popen() command:'sudo /sbin/iptables -L INPUT 3 -nvx|awk '{print $1}''
20966:20140321:192934.973 Run remote command [sudo /sbin/iptables -L INPUT 3 -nvx|awk '{print $1}'] Result [0] []...

I can copy&paste the command from the logs and get a response

su zabbix -s /bin/sh
sh-4.1$ sudo /sbin/iptables -L INPUT 3 -nvx | awk '{print $1}'
247722

Does anyone have an idea why Zabbix-Server does not get the same result?
System is a Centos 6.5 with selinux disabled

Thanks for any help

tobi

[tobster]

I did some more testing of this UserParameter. I added a second one which prints colon 2 with awk and not colon 1 as the other.

UserParameter=ipt.pkt.stat[*],sudo /sbin/iptables -L $1 $2 -nvx | awk '{print $$1}'
UserParameter=ipt.traffic.stat[*],sudo /sbin/iptables -L $1 $2 -nvx | awk '{print $$2}'

And the second one works properly!

zabbix_get -s 192.168.199.130 -k ipt.pkt.stat\[INPUT,3\]

zabbix_get -s 192.168.199.130 -k ipt.traffic.stat\[INPUT,3\]
0

first I thought it's a problem with the parameter name, so I changed it but did not work. Then I changed the $$1 of the first parameter to $$2 and tested again. It works!

zabbix_get -s 192.168.199.130 -k ipt.pkt.stat\[INPUT,3\]
0

Then I tested the same on a debian wheezy server and it's the same behaviour

[knike]

I found a simple solution (my version zabbix 2.4).
For me, working triple dollar sign.
1. Test file.
# cat /tmp/iostat
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 c0t500003953818EC00d0
0.0 15.3 0.0 184.6 0.0 0.3 0.0 19.6 0 6 c0t500003953818EDB0d0
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0 c0t500003953818EA28d0

2. Zabbix-agentd.conf:
UserParameter=custom.hdd[*],awk '/$1/{print $$$2}' /tmp/iostat

3. Check from Zabbix Server:
# zabbix_get -s 192.168.1.1 -k 'custom.hdd[c0t500003953818EDB0d0,11]'
c0t500003953818EDB0d0
# zabbix_get -s 192.168.1.1 -k 'custom.hdd[c0t500003953818EDB0d0,4]'
184.6