removelastline.ps1

# Powershell script to list all files (including sub directory) under particular directory and remove last line out of it.

Get-ChildItem ".\" -Recurse -Filter *.txt | 
Foreach-Object {
    $lastline = Get-Content $_.FullName | select -Last 1
    if ($lastline -like 'findsomestring') {
        $test = Get-Content $_.FullName
        $output = $test[0..($test.count - 2)]
        Set-Content -Path $_.FullName -Value $output
    }
}