Everything is Crap » powershell

Execute local scripts in PowerShell

paul — Fri, 27 Feb 2009 23:07:00 +0000

I run into this all the time. I install PowerShell, go to run a .ps1 script and it yells at me saying that the script

is not digitally signed. The script will not execute on the system. Please see "get-help about_signing" for more details…

To fix it you'll need to execute this command:

Set-ExecutionPolicy RemoteSigned

(And in Windows 7 you'll need to have Administrator rights in the console windows as well because it edits a registry key)

Technically, you're introducing a security vulnerability, but there's no way I'm going to sign every little script that I write. That's just asking too much!

Powershell Spamming Machine

paul — Mon, 03 Dec 2007 21:55:00 +0000

Another scripting day…I'm now a spammer!

$MyReader = new-object

   System.IO.StreamReader("C:message.txt");

$message = $MyReader.ReadToEnd();

$MyReader.Close();

#$message = Get-Content -encoding UTF8 -path C:email.txt

   foreach ($user in Get-Content C:names.txt) {

   $smtp = new-object

   Net.Mail.SmtpClient("mail.myserver.com")

   $smtp.Send("Me ",

   "$user", "Subject", $message)

   }

The script reads in a text file that contains the e-mail message, then it emails everybody listed (one per line) in another file. Pretty simple, but it took me a while to figure it out (about 45 minutes). Boom. Instant spamming machine.

paul — Thu, 01 Nov 2007 18:45:00 +0000

I made a PowerShell script today. It copies only the most recent file in one directory to another directory and e-mails me a simple status report. Let me show you the script…

gci c:source | sort LastWriteTime -desc | select -first 1 |

  cpi -dest c:destination -ea SilentlyContinue -ev copyerr

if($copyerr.count -gt 0)

{

  $smtp = new-object

   Net.Mail.SmtpClient("mail.myserver.com")

  $smtp.Send("My Name ",

   "recipient@email.com", "Error copying file",

   "Copy failed with the following error message: " + $copyerr)

}

else

{

  $smtp = new-object

   Net.Mail.SmtpClient("mail.myserver.com")

  $smtp.Send("My Name ",

   "recipient@email.com", "File copied successfully", "Sweet.")

}

…so this loaded script does a lot in the first line. It finds all the files in the source folder, sort's them by LastWriteTime, selects the first one, and copies that file to the desired location. Errors are logged in copyerr, and if any errors are found in copyerr then I get an e-mail saying that it didn't succeed. Otherwise I get an e-mail saying that it did.

My first useful powershell script! I think I like powershell.