powershell extract text between two strings

Here is a PowerShell function which will find a string between two strings.

function GetStringBetweenTwoStrings($firstString, $secondString, $importPath){

    #Get content from file
    $file = Get-Content $importPath

    #Regex pattern to compare two strings
    $pattern = "$firstString(.*?)$secondString"

    #Perform the opperation
    $result = [regex]::Match($file,$pattern).Groups[1].Value

    #Return result
    return $result

}

You can then run the function like this:

GetStringBetweenTwoStrings -firstString "Lorem" -secondString "is" -importPath "C:\Temp\test.txt"

My test.txt file has the following text within it:

Lorem Ipsum is simply dummy text of the printing and typesetting industry.

So my result:

Ipsum

The quick answer is - change your greedy capture (.*) to non greedy - (.*?). That should do it.

customfield_11301(.*?)customfield_10730

Otherwise the capture will eat as much as it can, resulting in it continuing 'til the last customfield_10730.

Regards