I am trying to add a space to the PCRE group name.Not sure how to do so.For ex:
rex field=_raw "Time taken = (?<"TimeInMillisecs">[^\s^\D ] )
In the above,I need the group name to be "Time in Millisecs".How do I change the above expression?
CodePudding user response:
Don't. Working with spaces in Splunk field names can be problematic. It's best to use the compressed name and then use a rename
command at the end of the query to change to the desired display name.
rex field=_raw "Time taken = (?<TimeInMillisecs>[^\s^\D ] )
| rename TimeInMillisecs as "Time in Ms"
CodePudding user response:
A couple of words on your regex: [^\s^\D ]
matches one or more chars other than whitespace, ^
, non-digit and
chars.
Note that \D
matches any whitespaces, ^
and
chars since they are non-digit chars, so [^\s^\D ]
is equal to [^\D]
. And as you can see, "any one or more chars other than non-digit chars" is actually the same as "one or more digit chars".
So, to make your regex free from ambiguity, you can use:
rex field=_raw "Time taken = (?<TimeInMillisecs>\d )
| rename TimeInMillisecs as "Time In Millisecs"