How extract field and value using rex?

[karthi2809]

29-Mar-2023 04:56:35:PM: |CPU Utilization % Average ------- 11

Expected result:

11

[ITWhisperer]

| rex "(?<expected>\d+)$"

[karthi2809]

@ITWhisperer 

rex field=_raw "MemoryUsage %(?<MemoryUtilization>[^']+)"

MY result is

------------ 41.4

expected result

41.4

[ITWhisperer]

If you move the goal posts by providing different examples, you can expect the solution to break. Try something like this (based on the two examples given so far!)

| rex "(?<expected>[\d\.]+)$"