I am trying to use the following regex:


to get multi lines betwords

250096 - LT Security Role: Read Only, 250032 - Sales VIC3, 250083 -
Security Role: Base Security Role, 250080 - Security Role: Payment
Allocation, 250058 - Security Role: TFM Sales Consultant, 250103 - Web
Fleet SuperUser

But the select-string is not returning anything.

I used https://regex101.com/ and https://www.regexpal.com/ and the Regex is working as expected.

could you please help.

$ModifyOldRegex = "(?<=----Old-------\n)(((.+\n)+)\n*?)(?=__________________________________________)"    
$Description | Select-String  -Pattern $ModifyOldRegex.matches.Value

enter image description here

  • try this: select-string -pattern $ModifyOldRegex -AllMatches | % { $_.Matches } | % { $_.Value } – SimonS Feb 1 '18 at 14:07

Finally I found the problem:

1- Use get-Content -Raw for the \n to work // I am not sure why

2- Changed the Regex to


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