René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"7.4.0 Invoking pwsh -Command with stdout redirection from within PowerShell results in CLIXML instead of actual output","articleBody":"### Prerequisites\n\n- [X] Write a descriptive title.\n- [X] Make sure you are able to repro it on the [latest released version](https://github.com/PowerShell/PowerShell/releases)\n- [X] Search the existing issues.\n- [X] Refer to the [FAQ](https://github.com/PowerShell/PowerShell/blob/master/docs/FAQ.md).\n- [X] Refer to [Differences between Windows PowerShell 5.1 and PowerShell](https://learn.microsoft.com/powershell/scripting/whats-new/differences-from-windows-powershell).\n\n### Steps to reproduce\n\nI ran across this by accident while trying to workaround issue #20747.\r\n\r\nIf I'm using PowerShell 7.4.0 and I invoke `pwsh` with `-Command` and I redirect the output of `pwsh` to a file, that file ends up containing CLIXML with an encoded version of the output rather than the actual output, as happens in 7.3.10\r\n\r\nWhen doing this with a script and `pwsh -File` things work as expected.\r\n\r\nThis appears to be related to the PR: [Support byte stream piping between native commands and file redirection](https://github.com/PowerShell/PowerShell/pull/17857) by @SeeminglyScience that was added in preview 4.\n\n### Expected behavior\n\n```console\nPS\u003e pwsh \u003ex.txt -Command { Write-Output \"Hello\" }\r\n\r\nPS\u003e Get-Content x.txt\r\nHello\n```\n\n\n### Actual behavior\n\n```console\nPS\u003e pwsh \u003ex.txt -Command { Write-Output \"Hello\" }\r\n\r\nPS\u003e Get-Content x.txt\r\n#\u003c CLIXML\r\n\u003cObjs Version=\"1.1.0.1\" xmlns=\"http://schemas.microsoft.com/powershell/2004/04\"\u003e\u003cS S=\"Output\"\u003eHello\u003c/S\u003e\u003c/Objs\u003e\n```\n\n\n### Error details\n\n```console\nNo error invovled.\n```\n\n\n### Environment data\n\n```powershell\nName                           Value\r\n----                           -----\r\nPSVersion                      7.4.0\r\nPSEdition                      Core\r\nGitCommitId                    7.4.0\r\nOS                             Microsoft Windows 10.0.19044\r\nPlatform                       Win32NT\r\nPSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}\r\nPSRemotingProtocolVersion      2.3\r\nSerializationVersion           1.1.0.1\r\nWSManStackVersion              3.0\n```\n\n\n### Visuals\n\n### 7.3.10\r\n![image](https://github.com/PowerShell/PowerShell/assets/66026737/b76c568f-9bfe-4bff-a016-dcc54afe82d1)\r\n\r\n### 7.4.0\r\n![image](https://github.com/PowerShell/PowerShell/assets/66026737/f0c4a2a4-a54c-4566-8faa-66d25328eb89)\r\n","author":{"url":"https://github.com/twinter-amosfivesix","@type":"Person","name":"twinter-amosfivesix"},"datePublished":"2023-11-29T16:20:31.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/20808/PowerShell/issues/20808"}