PowerShell. Ini Files. Replacing a value in a key inside a section sample 1

ReplaceIniValue_Sample1.ps1

# Ini files
# Replacing a value in a key inside a section sample
#
# http://stackoverflow.com/questions/29688299/powershell-and-regex-how-to-replace-a-ini-name-value-pair-inside-a-named-sectio/29688435#29688435
#
$Path="c:\temp\test.ini"
 
@"

# This line have a white line after and before

[Sky]
Size=Big

Color=White

[Home]
Color=Black
# Last line
"@ | Set-content $Path
 
$Section="Sky"
$Name="Color"
$Value="Blue"
 
function Set-INIKey{
    param(
        [string]$path,
        [string]$section,
        [string]$key,
        [string]$value
    )

    $edits = (Get-Content $path) -join "`r`n" -split '\s(?=\[.+?\])' | ForEach-Object{
        If($_ -match "\[$section\]"){
            $_ -replace "($key=)\w+", "`$1$value"
        } Else {
            $_
        }
    }

    -join $edits | Set-Content $path
}

Set-INIKey $Path "Sky" "Color" "Blue"