使用Regex从.log文件中提取数据

我正在尝试使用正则表达式正向后提取数据。我创建了一个具有以下内容的.ps1文件：

$input_path = ‘input.log’

$output_file = ‘Output.txt’

$regex = ‘(?<=    "name": ")(.*)(?=",)|(?<=    "fullname": ")(.*)(?=",)|(?<=Start identity token validation\r\n)(.*)(?=ids: Token validation success)|(?<=  "ClientName": ")(.*)(?=",\r\n  "ValidateLifetime": false,)’

select-string -Path $input_path -Pattern $regex -AllMatches | % { $_.Matches } | % { $_.Value } >$output_file

输入文件如下所示：

08:15.27.47-922: T= 11 ids: Start end session request
08:15.27.47-922: T= 11 ids: Start end session request validation
08:15.27.47-922: T= 11 ids: Start identity token validation
08:15.27.47-922: T= 11 ids: Token validation success
{
  "ClientId": "te_triouser",
  "ClientName": "TE Trio User",
  "ValidateLifetime": false,
  "Claims": {
    "iss": "http://sv-trio17.adm.linkoping.se:34000/core/",
    "aud": "te_triouser",
    "exp": "1552054900",
    "nbf": "1552054600",
    "nonce": "f1ae9044-25f9-4e7f-b39f-bd7bdcb9dc8d",
    "iat": "1552054600",
    "at_hash": "Wv_7nNe42gUP945FO4p0Wg",
    "sid": "9870230d92cb741a8674313dd11ae325",
    "sub": "23223",
    "auth_time": "1551960154",
    "idp": "tecs",
    "name": "tele2",
    "canLaunchAdmin": "1",
    "isLockedToCustomerGroup": "0",
    "customerGroupId": "1",
    "fullname": "Tele2 Servicekonto Test",
    "tokenIdentifier": "2Ljta5ZEovccNlab9QXb8MPXOqaBfR6eyKst/Dc4bF4=",
    "tokenSequence": "bMKEXP9urPigRDUguJjvug==",
    "tokenChecksum": "NINN0DDZpx7zTlxHqCb/8fLTrsyB131mWoA+7IFjGhAV303///kKRGQDuAE6irEYiCCesje2a4z47qvhEX22og==",
    "idpsrv_lang": "sv-SE",
    "CD_UserInfo": "23223 U2 C1",
    "amr": "optional"
  }
}

如果我通过http://regexstorm.net/tester运行正则表达式，则会得到正确的匹配项。但是，当我在计算机上运行带有Powershell的脚本时，我在正则表达式问题中没有\ r \ n的地方找不到匹配项。我只从前两个正则表达式问题中获得匹配。