Powershell Out-File adds a new line to the top of the file - Out-File vs. Set-content

Question

I have the following permissions:

# Find all .csproj files 
$csProjFiles = get-childitem ./ -include *.csproj -recurse 

# Remove the packages.config include from the csproj files.
$csProjFiles | foreach ($_) {(get-content $_) | 
             select-string -pattern '<None Include="packages.config" />' -notmatch | 
             Out-File $_ -force}

And it works fine. The line with package.config is not in the file after starting.

But after I started, a new line is added to this TOP file. (Not downstairs.)

I am confused by how this happens. What can I do to get rid of the extra new char line that is generated at the top of the file?

UPDATE:

I swapped another way:

$csProjFiles | foreach ($_) {$currentFile = $_; (get-content $_) | 
               Where-Object {$_ -notmatch '<None Include="packages.config" />'} | 
               Set-Content $currentFile -force}

It works fine and does not have an extra line at the top of the file. But I would not mind understanding why an extra line was added in the above example.

Answer 1

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---

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