Кроссплатформенный PowerShell

$result = $PSVersionTable | Select-Object PSVersion,PSEdition,Platform,OS
$resultType = if($null -eq $result){'<null>'}else{$result.GetType().FullName}
[pscustomobject]@{ Result=$result; Type=$resultType; Count=@($result).Count }

$result = Get-Command powershell,pwsh -ErrorAction SilentlyContinue | Select-Object Name,Source
$resultType = if($null -eq $result){'<null>'}else{$result.GetType().FullName}
[pscustomobject]@{ Result=$result; Type=$resultType; Count=@($result).Count }

$result = Import-Module SomeLegacyModule -UseWindowsPowerShell
$summary = [ordered]@{ IsNull=($null -eq $result); Count=@($result).Count }
if($null -ne $result){$summary.Type=$result.GetType().FullName};[pscustomobject]$summary

$result = Get-PSProvider | Select-Object Name,Drives
$resultType = if($null -eq $result){'<null>'}else{$result.GetType().FullName}
[pscustomobject]@{ Result=$result; Type=$resultType; Count=@($result).Count }

$env:Demo="x"
$env:DEMO

$result = Get-ChildItem Alias: | Select-Object -First 3
$shape = if($null -eq $result){'<null>'}elseif($result -is [array]){'array'}else{$result.GetType().Name}
[pscustomobject]@{ Shape=$shape; Values=@($result) }

$result = Join-Path $HOME ".config/powershell"
$items = @($result)
[pscustomobject]@{ Count=$items.Count; First=$items | Select-Object -First 1; IsNull=($null -eq $result) }

$result = [IO.Path]::Combine($HOME,"data","x.json")
$shape = if($null -eq $result){'<null>'}elseif($result -is [array]){'array'}else{$result.GetType().Name}
[pscustomobject]@{ Shape=$shape; Values=@($result) }

$result = Resolve-Path -LiteralPath $path | Select-Object -ExpandProperty Path
$items = @($result)
[pscustomobject]@{ Count=$items.Count; First=$items | Select-Object -First 1; IsNull=($null -eq $result) }

$result = & { if($IsWindows){Get-CimInstance Win32_OperatingSystem}else{Get-Content /etc/os-release} }
$summary = [ordered]@{ IsNull=($null -eq $result); Count=@($result).Count }
if($null -ne $result){$summary.Type=$result.GetType().FullName};[pscustomobject]$summary

$args=@("--format","json",$path)
& tool @args

& git status --porcelain
if($LASTEXITCODE -ne 0){throw "git failed: $LASTEXITCODE"}

$result = & { $PSVersionTable;Get-PSProvider;[Text.Encoding]::Default.WebName }
$items = @($result)
[pscustomobject]@{ Count=$items.Count; First=$items | Select-Object -First 1; IsNull=($null -eq $result) }

# Сценарий для ревью: Путь работает локально, но не в контейнере.
$path = '.\incoming\data.csv'
$hashBefore = (Get-FileHash -LiteralPath $path).Hash
$rows = Import-Csv -LiteralPath $path
$hashAfter = (Get-FileHash -LiteralPath $path).Hash
[pscustomobject]@{ Rows=$rows.Count; Stable=($hashBefore -eq $hashAfter); Culture=[cultureinfo]::CurrentCulture.Name }

# Сценарий для ревью: Native command видит другие аргументы.
$context = [pscustomobject]@{ Platform=$PSVersionTable.Platform; Home=$HOME; User=[Environment]::UserName; Current=(Get-Location).Path }
$path = Join-Path $HOME 'app/data'
[pscustomobject]@{ Context=$context; Path=$path; Exists=(Test-Path -LiteralPath $path); Provider=(Get-Item $HOME).PSProvider.Name }
$context | ConvertTo-Json -Depth 4

# Сценарий для ревью: Временный файл создаётся предсказуемым именем в общем /tmp.
$context = [pscustomobject]@{ Platform=$PSVersionTable.Platform; Home=$HOME; User=[Environment]::UserName; Current=(Get-Location).Path }
$path = Join-Path $HOME 'app/data'
[pscustomobject]@{ Context=$context; Path=$path; Exists=(Test-Path -LiteralPath $path); Provider=(Get-Item $HOME).PSProvider.Name }
$context | ConvertTo-Json -Depth 4

# Сценарий для ревью: Сценарий повышает права через sudo с пользовательской строкой.
$context = [pscustomobject]@{ Platform=$PSVersionTable.Platform; Home=$HOME; User=[Environment]::UserName; Current=(Get-Location).Path }
$path = Join-Path $HOME 'app/data'
[pscustomobject]@{ Context=$context; Path=$path; Exists=(Test-Path -LiteralPath $path); Provider=(Get-Item $HOME).PSProvider.Name }
$context | ConvertTo-Json -Depth 4

# Сценарий для ревью: Windows ACL считаются эквивалентом chmod.
$context = [pscustomobject]@{ Platform=$PSVersionTable.Platform; Home=$HOME; User=[Environment]::UserName; Current=(Get-Location).Path }
$path = Join-Path $HOME 'app/data'
[pscustomobject]@{ Context=$context; Path=$path; Exists=(Test-Path -LiteralPath $path); Provider=(Get-Item $HOME).PSProvider.Name }
$context | ConvertTo-Json -Depth 4