topic Re: Extract fields in specific position in Dashboards & Visualizations

Extract fields in specific position

marco_massari11 — Tue, 15 Dec 2020 14:12:45 GMT

Hi,

I have some logs like this:

fields ............................................. Location=Location#All Locations#Site#City#E-MY-SIT-00-XYZ#TEST, fields..........................

So I need to extract for example E-MY-SIT-00-XYZ from Location field. The string E-MY-SIT-00-XYZ could be different but the schema is always 1Letter-2letters-3letters-2numbers-3letters. Can you help me to extract the string?

Thank you in advance

Re: Extract fields in specific position

gcusello — Tue, 15 Dec 2020 14:25:01 GMT

Hi @marco_massari11,

if you already extracted the location field, you can restrict the regex to the content of this field instead to the full event.

Then you have to create a regex that matches the rule of your field to extract:

letters are \w
numbers are \d
the other chars are the same (e.g. "-") or eventually escaped (e.g. you have to escape = or ")")

in other words, you have to try something like this:

| rex field=Locatioon "(?<your_field>\w-\w\w-\w\w\w-\d\d-\w\w\w#\w\w\w\w)"

regex that you can test at https://regex101.com/r/esbM8c/1

If you're not sure about the number of digits or letters, you can use the repeter in this way:

| rex field=Location "(?<your_field>\w-\w+-\w+-\d+-\w+#\w+)"

Ciao.

Giuseppe

Re: Extract fields in specific position

marco_massari11 — Tue, 15 Dec 2020 14:41:42 GMT

Hi @gcusello ,

Thank you so much for your help. It works perfectly.

Ciao

Marco