#For PowerShell v3
Function gitignore {
  Param(
    [Parameter(Mandatory=$true)]
    [string[]]$list
  )
  $params = $list -join ","
  invoke-WebRequest -Uri "http://gitignore.io/api/$params" | select -expandproperty content | out-file -FilePath $(join-path -path $pwd -ChildPath ".gitignore") -Encoding ascii
}