从命令行运行时，简单的PowerShell脚本拒绝写入文件，但在ISE中可以正常工作

Question

So I have a pretty simple PowerShell script used to update a version number during a build.

$InputFile = 'D:\BuildAgent\work\c9716e2651305a2e\web\WEB-INF\classes\version.properties'
$OutputFile = $InputFile

Write-Host $('Updating "' + $OutputFile + '" to reflect version "2.10.0.51"')
(Get-Content $InputFile) | 
Foreach-Object {
    $_ -replace 'version.release\s*:.*','version.release:     2.10.0.51'
}  |
Out-File $OutputFile

It works completely fine from within ISE, but when I run it from the command line with

powershell.exe -Command - < powershell2447437064467034590.ps1

or

powershell.exe -NoProfile -NonInteractive -ExecutionPolicy ByPass -Command - < powershell2447437064467034590.ps1

All this does though is blank out the file. How can this work fine from ISE but not from the command line?

Answer 1

"Windows Powershell does not load commands from the current location by default. If you trust this command, instead type ".\\test.ps1"

-Windows Powershell

powershell.exe .\powershell2447437064467034590.ps1

I tested with Powershell command prompt and classic command prompt

For more information

Run from an elevated script or command, Powershell 3.0

Update-Help
Get-help about_Command_Precedence

Answer 2

I figured it out. I used tabs in the file to pretty print and format the text. Apparently that breaks it. If I copy and past it into ISE, it silently converts all the tabs into spaces which is why it worked there. Pretty surprising that the tokenizer doesn't treat all whitespace the same.