SSH Checks - Trim down the output

[LukeAB93UK]

Hello,

So I am now trying to implement SSH checks for the Juniper Routers we deploy.

I have been able to succesffuly SSH to the device and run the command I want that shows the output I just now need to filter the output to keep only the value I want.



As you can see I am getting an output but all I want to keep is that value underlined in blue and literally junk everything else.

I did think of doing this by trimming the collums in my command that is being run by Zabbix on the Juniper however there is no rear trim to remove the stuff after the "79999" as well so if I trimmed the collums I would only be able to get rid of where it says Bit rate.

I have tried using Javascript to do it

parseNum = str => +str.replace(/[^.\d]/g, '');
let str = 'a1b2c.d3e';
console.log(parseNum(str));

but no dice I am always getting that output.

So Can anyone guide me on how I can trim out all that extra stuff I dont need. I only want to keep the "79999".

[Hamardaban]

Why don't you just use the "Regular expression" type of preprocessing?

https://www.zabbix.com/documentation/current/en/manual/config/items/preprocessing

[LukeAB93UK]

Why don't you just use the "Regular expression" type of preprocessing?

https://www.zabbix.com/documentation/current/en/manual/config/items/preprocessing

Hey,

I have had a look but I have never been very good at learning from the documentation, its helpfor for referencing but without an example of how I would do it laid out I struggle to get my head around it.

I want to keep only the first number only that would be returned from that command being run via SSH

[Hamardaban]

regex - "^Bit rate (kbps) :\s*(\d+)\s+.*$"
output - \1

Learn regular expressions and read the documentation.
https://regex101.com/ - the best!

[LukeAB93UK]

regex - "^Bit rate (kbps) :\s*(\d+)\s+.*$"
output - \1

Learn regular expressions and read the documentation.
https://regex101.com/ - the best!

Hey There,

I have tried but I am getting this error message



I would pull this infomration using SNMP but sadly there is no OID for the Downstream bitrate only the upstream

[cyber]

I think you copied it all... with ""-s ? leave ""-s out, it should match.

[LukeAB93UK]

I think you copied it all... with ""-s ? leave ""-s out, it should match.

Hey there,



This is how I have it set up. and its throwing this output

• cannot perform regular expression "^Bit rate (kbps) :\s*(\d+)\s+.*$" match for value of type "string": pattern does not match

[cyber]

I think there is a little mistake.. ()-s should be escaped or they will be taken as capture group
Try with "^Bit rate \(kbps\) :\s*(\d+)\s+.*$"

https://regex101.com/r/64AIfq/1

[LukeAB93UK]

I think there is a little mistake.. ()-s should be escaped or they will be taken as capture group
Try with "^Bit rate \(kbps\) :\s*(\d+)\s+.*$"

https://regex101.com/r/64AIfq/1

Hey,

Thanks for all the help so far but its still spitting out and I have never used regex before.

• cannot perform regular expression "^Bit rate \(kbps\) :\s*(\d+)\s+.*$" match for value of type "string": pattern does not match

This is how I have it set up.

Maybe I am missing something. I can monitor from OID strings and I've figured out custom alerting triggers and dashboards but I cant seem to get this to work. This is sort of a new job responsibility of mine and I have a Zabbix trainer coming here to train me in the next few months but in the mean time I am trying to do things on my own and.