Join absolute paths

user_4429472 0
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I need to join two paths, each of those can be absolute. In such a case the second path should win, if both are. But the Join-Path commandlet doesn't seem to produce the desired result:

> Join-Path 'path' 'C:\Windows'
path\C:\Windows

The result produced is invalid as long as the 2d path is absolute no matter what I tried, quite surprisingly for me, because I guess I'm too used to path joining facilities in other languages where this would result in C:\Windows.

How can I solve this? I use Powershell Core v7.1.

path powershell
1 Answers

If you want that behavior in PowerShell, don't use the Join-Path cmdlet, because it is merely combining the Path parameter together with the ChildPath parameter (in that order) using the backslash and makes sure these backslashes aren't doubled in doing so.

The alternative that does do what you expect is to use .NET

[System.IO.Path]::Combine('path','C:\Windows')               # --> C:\Windows
[System.IO.Path]::Combine('D:\somewhere\path','C:\Windows')  # --> C:\Windows
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