runPowerShellFromLinux.rb

#requires the winrm gem - sudo gem install -r winrm

require 'winrm'

endpoint = 'http://SERVER_FQDN:5985/wsman'
winrm = WinRM::WinRMWebService.new(endpoint, :negotiate, :user => 'USERNAME', :pass => 'PASSWORD')
winrm.create_executor do |executor|
  executor.run_powershell_script("Get-Service | Where-Object {$_.Name -Like '*SQL*'}") do |stdout, stderr|
  #executor.run_cmd("ipconfig /all") do |stdout, stderr| #use this if you'd rather run a command prompt
    STDOUT.print stdout
    STDERR.print stderr
  end
end