Use a capture group
regex := regexp.MustCompile(`.*\bCore Count: (\d+)`)
result := regex.FindAllStringSubmatch(raw, -1)
https://play.golang.org/p/r_TxhVZVfzE <https://play.golang.org/p/r_TxhVZVfzE>
See also https://www.youtube.com/watch?v=XCE0psygwj8
> On Apr 1, 2021, at 12:32 PM, Artur Vianna <[email protected]> wrote:
>
> Try the regex: "Core Count: [0-9]+", then split on ":" and select the second
> part.
>
> On Thu, 1 Apr 2021, 15:28 Sharan Guhan, <[email protected]
> <mailto:[email protected]>> wrote:
> Hi Experts,
>
> New to Golang and finding it non trivial to achieve the below efficiently :-)
> Any pointers will help..
>
> I have a huge string as below .. Now from this I want to extract the number
> "18" after "Core count".. I was thinking of walking through each string with
> Spilt("\n"), but that will make it slower. I also tried strings.Index with
> "Core count", but unable to see how to pull the 18 from this..
>
> Sharan
>
>
> "Version: Intel(R) Xeon(R) Gold 6140 CPU @ 2.30GHz
> Voltage: 1.6 V
> External Clock: 100 MHz
> Max Speed: 4000 MHz
> Current Speed: 2300 MHz
> Status: Populated, Enabled
> Upgrade: Socket LGA3647-1
> L1 Cache Handle: 0x004D
> L2 Cache Handle: 0x004E
> L3 Cache Handle: 0x004F
> Serial Number: Not Specified
> Asset Tag: UNKNOWN
> Part Number: Not Specified
> Core Count: 18"
>
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