CISPowerShell.psm1
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<#
.SYNOPSIS Download Putty .DESCRIPTION Download the x64 or x86 version of the latest version of Putty to a specified file path location .EXAMPLE Download-Putty -FilePath C:\ This example will determine if you need the x86 or x64 version of Putty and save the executable file to c:\putty.exe .EXAMPLE Save-d00mPutty -FilePath C:\users\Me\NewFolder This example will determine if you need the x86 or x64 version of Putty and save the executable file to c:\users\Me\NewFolder. If NewFolder doesn't exist, the cmdlet will create the folder for you #> function Download-Putty { [cmdletbinding()] param ( [parameter(Mandatory = $true)] [string]$FilePath ) begin { $timer = New-Object -TypeName System.Diagnostics.StopWatch $cmdletName = $PSCmdlet.MyInvocation.MyCommand.Name Write-Verbose -Message ('{0} : Begin execution : {1}' -f $cmdletName, (Get-Date)) $timer.Start() } process { try { if (Test-Connection google.com -Count 1) { Write-Verbose -Message ('{0} : Creating destination filepath : {1}' -f $cmdletName, $FilePath) If (!(Test-Path -Path $FilePath)) { New-Item -Path $FilePath -ItemType Directory -Force | Out-Null Write-Verbose -Message ('{0} : Created destination filepath complete' -f $cmdletName) } Write-Verbose -Message ('{0} : Detecting operating system architecture' -f $cmdletName) $uri = switch ((Get-WmiObject -Class Win32_OperatingSystem -Property OSArchitecture).OSArchitecture) { '32-bit' { Write-Verbose -Message ('{0} : Detected x86 operating system' -f $cmdletName) 'https://the.earth.li/~sgtatham/putty/latest/w32/putty.exe' } '64-bit' { Write-Verbose -Message ('{0} : Detected x64 operating system' -f $cmdletName) 'https://the.earth.li/~sgtatham/putty/latest/w64/putty.exe' } } Write-Verbose -Message ('{0} : Download URL : {1}' -f $cmdletName, $uri) Invoke-WebRequest -Uri $uri -OutFile (Join-Path -Path $FilePath -ChildPath 'putty.exe') Write-Verbose -Message ('{0} : Download complete' -f $cmdletName) '{0} : Download complete. FilePath : {1}\putty.exe' -f $cmdletName, $FilePath | Write-Output } else { 'No access to internet! Unable to download Putty!' | Write-Warning } } catch { throw } } end { $timer.Stop() Write-Verbose -Message ('{0} : End execution' -f $cmdletName) Write-Verbose -Message ('Total execution time: {0} ms' -f $timer.Elapsed.TotalMilliseconds) } } <# .SYNOPSIS Get a computer's public IP address .DESCRIPTION Retrieve a computer's public IP address by using Amazon's CheckIP REST service .EXAMPLE Get-PublicIP This example will retrieve the local machine's public IP address .EXAMPLE Get-PublicIP -ComputerName Computer1, Computer2, Computer3 This example will retrieve the specified computers public IP addresses using default credentials .EXAMPLE Get-PublicIP -ComputerName (Get-Content c:\list.txt) -Credential (Get-Credential) This example will retrieve public IP addresses for the list of computer names in the file c:\list.txt (one computername per line) using the specified credentials #> function Get-PublicIP { [cmdletbinding()] param ( [parameter(ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true)] [string[]]$ComputerName = $env:COMPUTERNAME, [parameter()] [pscredential]$Credential ) begin { $timer = New-Object -TypeName System.Diagnostics.StopWatch $cmdletName = $PSCmdlet.MyInvocation.MyCommand.Name Write-Verbose -Message ('{0} : Begin execution : {1}' -f $cmdletName, (Get-Date)) $timer.Start() } process { foreach ($computer in $ComputerName) { try { Write-Verbose -Message ('{0} : {1} : Begin execution' -f $cmdletName, $computer) $sessionParams = @{ComputerName = $computer ErrorAction = 'Stop'} if ($Credential -ne $null) { $sessionParams.Add('Credential', $Credential) Write-Verbose -Message ('{0} : {1} : Using supplied credentials' -f $cmdletName, $computer) } else { Write-Verbose -Message ('{0} : {1} : Using default credentials' -f $cmdletName, $computer) } $session = $null $session = New-PSSession @sessionParams if ($session) { $ip = $null $ip = Invoke-Command -Session $session -ScriptBlock { Invoke-RestMethod -Uri http://checkip.amazonaws.com } $props = @{ComputerName = [string]$computer PublicIP = [ipaddress]$ip.Trim()} New-Object -TypeName System.Management.Automation.PSObject -Property $props | Write-Output } else { '{0} : {1} : Unable to create PSSession. If not supplied, try including the -Credential parameter' -f $cmdletName, $computer | Write-Warning } } catch { throw } } } end { $timer.Stop() Write-Verbose -Message ('{0} : End execution' -f $cmdletName) Write-Verbose -Message ('Total execution time: {0} ms' -f $timer.Elapsed.TotalMilliseconds) } } <# .SYNOPSIS Change a Server Core instance's default shell from CMD.exe to PowerShell.exe .DESCRIPTION Set registry key to specify PowerShell as default shell HKLM:\Software\Microsoft\Windows NT\CurrentVersion\WinLogon\Shell = "PowerShell.exe -NoExit" * ONLY APPLICABLE TO SERVER CORE INSTALLATIONS * .EXAMPLE Set-PowerShellDefaultShell This example sets PowerShell as the default shell on the local machine using default credentials and then warns the user that the local machine must still be rebooted for the changes to take effect .EXAMPLE Set-PowerShellDefaultShell -ComputerName Server1, Server2 -Restart This example sets PowerShell as the default shell on the specified computer names (Server1 and Server2) using default credentials and then reboots the computers automatically when complete. .EXAMPLE Set-PowerShellDefaultshell -ComputerName (Get-Content c:\list.txt) -Credential (Get-Credential) -Restart This example sets Powershell as the default shell on the specified computer names read from the file specified (1 computername per line) using the supplied credentials of Get-Credential and then reboots the computers automatically when complete #> function Set-PowerShellDefaultShell { [cmdletbinding()] param ( [parameter(ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true)] [string[]]$ComputerName = $env:COMPUTERNAME, [parameter()] [pscredential]$Credential, [parameter()] [alias('Reboot')] [switch]$Restart ) begin { $timer = New-Object -TypeName System.Diagnostics.StopWatch $cmdletName = $PSCmdlet.MyInvocation.MyCommand.Name Write-Verbose -Message ('{0} : Begin execution : {1}' -f $cmdletName, (Get-Date)) $timer.Start() $keyPath = 'HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\winlogon' Write-Verbose -Message ('{0} : KeyPath : {1}' -f $cmdletName, $keyPath) } process { foreach ($computer in $ComputerName) { Write-Verbose -Message ('{0} : {1} : Begin execution' -f $cmdletName, $computer) $sessionParams = @{ComputerName = $computer ErrorAction = 'Stop'} if ($Credential -ne $null) { $sessionParams.Add('Credential', $Credential) Write-Verbose -Message ('{0} : {1} : Using supplied credentials' -f $cmdletName, $computer) } else { Write-Verbose -Message ('{0} : {1} : Using default credentials' -f $cmdletName, $computer) } $session = $null $session = New-PSSession @sessionParams if ($session) { try { $result = Invoke-Command -Session $sessionParams -ArgumentList $keyPath, $Restart -ScriptBlock { try { Set-ItemProperty -Path $args[0] -Name 'Shell' -Value 'PowerShell.exe -NoExit' -Force $true | Write-Output if ($args[1]) { Restart-Computer -Force } } catch { throw } } New-Object -TypeName System.Management.Automation.PSCustomObject -Property @{ComputerName = $computer Result = $result} | Write-Output if (!$Restart) { '{0} : {1} : Successfully set PowerShell as default shell - reboot is required to make setting active' -f $cmdletName, $computer | Write-Warning } } catch { throw } } else { '{0} : {1} : Unable to create PSSession' -f $cmdletName, $computer | Write-Warning if (!$Credential) { 'Try including the -Credential parameter!' | Write-Warning } } } } end { $timer.Stop() Write-Verbose -Message ('{0} : End execution' -f $cmdletName) Write-Verbose -Message ('Total execution time: {0} ms' -f $timer.Elapsed.TotalMilliseconds) } } <# .SYNOPSIS Get a computers uptime .DESCRIPTION Calculate a computer's uptime by retrieving the LastBootUpTime property from the Win32 OperatingSystem WMI class and subtracting that from the current date and time. .EXAMPLE Get-UpTime This example retrieves the local machine's uptime using default credentials .EXAMPLE Get-UpTime -ComputerName Server1, Server2 -Restart This example retrieves the specified computer's uptime using default credentials .EXAMPLE Get-UpTime -ComputerName (Get-Content c:\list.txt) -Credential (Get-Credential) This example retrieves the computer names found in the file (one computer name per line) uptime using the specified credentials #> function Get-Uptime { [cmdletbinding()] param ( [parameter(ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true)] [string[]]$ComputerName = $env:COMPUTERNAME, [parameter()] [pscredential]$Credential ) begin { $timer = New-Object -TypeName System.Diagnostics.StopWatch $cmdletName = $PSCmdlet.MyInvocation.MyCommand.Name Write-Verbose -Message ('{0} : Begin execution : {1}' -f $cmdletName, (Get-Date)) $timer.Start() } process { foreach ($computer in $ComputerName) { try { Write-Verbose -Message ('{0} : {1} : Begin execution' -f $cmdletName, $computer) $sessionParams = @{ComputerName = $computer ErrorAction = 'Stop'} if ($Credential -ne $null) { $sessionParams.Add('Credential', $Credential) Write-Verbose -Message ('{0} : {1} : Using supplied credentials' -f $cmdletName, $computer) } else { Write-Verbose -Message ('{0} : {1} : Using default credentials' -f $cmdletName, $computer) } $session = $null $session = New-PSSession @sessionParams if ($session) { $result = $null $result = Invoke-Command -Session $session -ScriptBlock { [DateTime]::Now - [Management.ManagementDateTimeConverter]::ToDateTime((Get-WmiObject Win32_OperatingSystem).LastBootUpTime) } if ($result) { $props = @{ ComputerName = $computer UpTime = ('{0}:{1}:{2}:{3}:{4}' -f $result.Days, $result.Hours, $result.Minutes, $result.Seconds, $result.Milliseconds) TotalDays = $result.TotalDays TotalHours = $result.TotalHours TotalMinutes = $result.TotalMinutes TotalSeconds = $result.TotalSeconds } New-Object -TypeName System.Management.Automation.PSObject -Property $props | Write-Output } else { '{0} : {1} : Unable to retrieve Win32_Operatingsystem.LastBootupTime informantion!' -f $cmdletName, $computer | Write-Warning } } else { $message = '{0} : {1} : Unable to create PSSession. Ensure PSremoting to {1} is enabled.' -f $cmdletName, $computer if ($Credential -eq $null) { $message += ' Try including the -Credential parameter.' } $message | Write-Warning } } catch { throw } } } end { $timer.Stop() Write-Verbose -Message ('{0} : End execution' -f $cmdletName) Write-Verbose -Message ('Total execution time: {0} ms' -f $timer.Elapsed.TotalMilliseconds) } } |