Delete temp files

#PowerShell script to clean out temporary folders

#Load Active Directory PowerShell Module
Import-Module activedirectory

#Variable array for folders to clean, others can be added as needed
$tempRM = @("C:\Windows\Temp\*", "C:\Windows\Prefetch\*", "C:\Documents and Settings\*\Local Settings\temp\*", "C:\Users\*\Appdata\Local\Temp\*", "C:\Users\*\Appdata\Local\Microsoft\Windows\Temporary Internet Files\*")
#$tempUNC = @("\\$computer\c$\Windows\Temp\*", "\\$computer\c$\Windows\Prefetch\*", "\\$computer\c$\Documents and Settings\*\Local Settings\temp\*", "\\$computer\c$\Users\*\Appdata\Local\Temp\*", "\\$computer\c$\Users\*\Appdata\Local\Microsoft\Windows\Temporary Internet Files\*")

#AD Path to search for computers to clean
$searchbase = "OU=derp,OU=derp,OU=derp,DC=derp,DC=com"

#Credentials to use for network traversal if not running from an admin account, will need to add -Credentials to appropriate commands
#$credentials = Get-Credential -Message "Please provide administrator privileges" -UserName domain\username

#Set error display preference
$ErrorActionPreference = "SilentlyContinue"

#Get the list of computers to clean
$query = Get-ADComputer -Filter * -SearchBase $searchbase | Select DNSHostName | Sort DNSHostName
$computers = $query.DNSHostName

#Set alias for PsExec to be able to be ran from PowerShell. Requires PsExec to on local machine,
#Preferably in C:\Windows\system32 but where ever the executable is located should be fine
#Download PsTools here: http://technet.microsoft.com/en-us/sysinternals/bb896649.aspx
#Note that it requires an EULA to be accepted on first run on the local machine but has an -acceptEula switch to get around user input

set-alias psexec "C:\Windows\system32\psexec.exe"

#Test to see if WinRM is enabled on remote computer
#Copy and launch a batch file on remote computer using PsExec, if the test errors out
#This can be time consuming if you have a lot of computers to enable WinRM on
#In effect, this only really has to be done once per computer so this section can be commented out or cut into another script and used as needed
#SSL would be preferred for WinRM for security reasons but it requires setting up a non-self-signed certificate, which would be cumbersome for some to setup

foreach ($computer in $computers)
{
	if(Test-WSMan $computer){
		Write-Host "WinRM is enabled on $computer!"
	}
	else {
		& psexec -accepteula "\\$($computer)" -h -u administrator -p password -f -c "EnableWinRM.bat"
	}
}

#Operation to clear out temp files in specified folders
#The WinRM method requires winrm quickconfig -q to be run on host machines first
#The psexec command above should take care of enabling WinRM, including firewall exceptions
#The UNC method requires access to admin shares, still need to figure out how to get it to fail over to it

foreach ($computer in $computers)
	{
        Write-Host "$computer - Connecting..."
        if(Test-Connection $computer -Count 1 -Quiet)
        {
            Write-Host -ForegroundColor Green "$computer - Deleting files!"
            Invoke-Command -ComputerName $computer -ScriptBlock { foreach ($folder in $using:tempRM) {Remove-Item -Path $folder -Recurse -Force} }
			Write-Host -ForegroundColor Green "$computer - Done!"
        }
<# 		elseif(Test-WSMan $computer)
		{
			Write-Host -ForegroundColor Green "$computer - Deleting files via UNC!"
			Remove-Item -path $tempUNC -force -recurse
			Write-Host -ForegroundColor Green "$computer - Done!"
		} #>
		else
        {
            Write-Host -ForegroundColor Red "$computer - Offline!"
        }
	}