Why am I getting this error when attempting extraction of field?

[badrinath]

Hi all, 

I am working with logs in splunk and here I need to to capture the word before date and time field and the word after it.

ERROR 2022-06-09 xyz-abc

So, using regular expression i wanted to extract the word "error" and "xyz-abc" 

but it is not necessarily the starting of log this phrase can be anywhere  in the log like

log1:

ERROR 2022-06-09 xay-abc  connecting to network.

log2:

java.net.spring ERROR 2022-06-09 connecting to network.

so, please help me with a solution so that I can extract the field which contains error and the other field which contains abc-xyz.

thanks in advance

[gcusello · Accepted solution]

Hi @badrinath,

if you're sure that the strings to capture before the date is only one word and that in your log there's only one date, in that format, you could try something like this:

| rex "(?<first_word>\w+)\s+\d\d\d\d-\d\d-\d\d\s+(?<second_word>.*)"

that you can test https://regex101.com/r/MWWag6/1

Ciao.

Giuseppe

[badrinath]

thanks, this works well for the first field but comin to second field it capturing the whole log till end but I need only xyz-abc or till the first space

[gcusello]

Hi @badrinath,

if you want only the first word after the date, you can use this:

| rex "(?<first_word>\w+)\s+\d\d\d\d-\d\d-\d\d\s+(?<second_word>\w*)"

Ciao.

Giuseppe

P.S.: Karma Points are appreciated 😉