This one is super cool and you will amaze your boss. Many times, I’m asked if I can find who is logged into a machine.
As long as you have PSRemoting enabled across your network you can run this:
Also replace IP or name with the IP address or computer name of the computer
get-wmiobject win32_computersystem -computer IP or name | select username |
or you can do a | select * and it will give you more info.
I was tasked to search many files in a directory structure and find content in each file and replace that content. The directory has MANY types of files in it so I had to search for a certain type of file, then search inside that file and replace a string if found.
So, I did this:
Get-ChildItem | ForEach-Object Get-Content -replace and then Set-Content
change *File.Type* with the filetype you want to search for. It could be a *.log or a *.bak
Change string1 to what you’re looking for and string2 to what you want to change it to.
NOTE: This code will save the file with a new date even if it doesn’t replace the string. One minor issue that you must be aware of because if you later want to search for all old files and delete them, it wont find old ones that you’ve touched with this script because of the date change. I’m working on a new version that only saves the file if the string is found in it. Feel free to comment if you got the answer to this 🙂
Here is the code:
Get-ChildItem -include *File.Type* -Recurse | ForEach-Object { ( Get-Content -Path $_.FullName ) -replace 'string1', 'string2' | set-content $_.fullname } |
Throughout my years as a System Administrator, I’ve been asked repeatedly to produce a list for someone of the contents of a distribution list. I searched and found some scripts out there and ended up modifying one that now fits my needs.
# Gets distribution list members from a group in exchange # Author: Ed Rockwell # Company: Some Company You Work At # Date: Today :) # Ver: 1.0 param ( $OutputFile = "C:\listmembers.txt" ) Write-Host "Checking if output file already exists..." -NoNewline if (Test-Path $OutputFile) { Write-Host "Found old output file from last run!" Write-Host "Removing old output file..." -NoNewline Remove-Item $OutputFile -Force Write-Host "Done!" } else { Write-Host "Cleanup of last output file not found... Good!" } IF ( -NOT ( Get-PSSnapin -Name "Microsoft.Exchange.Management.PowerShell.E2010" -ErrorAction SilentlyContinue )) { Add-PSSnapin "Microsoft.Exchange.Management.PowerShell.E2010" } $UserCredential = Get-Credential "Domain\User" $saveto = "C:\listmembers.txt" $UserEntryGroupName = Read-Host "Enter the Group you would like to get the members" Get-DistributionGroup -identity "$UserEntryGroupName" | sort name | ForEach-Object { "`r`n$($_.Name)`r`n=============" | Add-Content $saveto Get-DistributionGroupMember $_.Name | sort Name | ForEach-Object { $_.Name + " <" + $_.PrimarySMTPAddress + ">" | Add-Content $saveto } } Notepad c:\listmembers.txt |
After building a new set of VMware ESX servers in a new vCenter cluster, I was tasked with moving around 200 virtual servers from the old cluster to the new cluster. To do this in an orderly fashion and to make sure I didn’t miss a step, I turned to Powershell to help me accomplish the task. The below script does the following:
$starttime = get-date #Region Validate Admin Account Clear-Host Write-Host "Validating this is running as an `"Admin`" account." # If you use a naming convention in your administrative accounts, change this next line to check for that convention IF ($ENV:USERNAME -notlike "*ADMIN") { THROW "SCRIPT MUST BE RUN WITH ADMIN ACCOUNT." } Write-Host "Good Job! You're using your ADMIN account!!" #EndRegion #Region Gather Migration Information #Region Connecting to VMWare Write-Host "Adding VMWare Snapin." Write-Host "" IF ( -NOT ( Get-PSSnapin -Name "VMware.VimAutomation.Core" -ErrorAction SilentlyContinue )) { Add-PSSnapin "VMware.VimAutomation.Core" } TRY { Disconnect-VIServer -Server * -Force -Confirm:$FALSE -ErrorAction SilentlyContinue } CATCH { } # Put in your FQDN of your virtual center server below Connect-VIServer -Server FQDN.OF.VIRTUALCENTER -WarningAction SilentlyContinue | Out-Null #EndRegion #Region Get Server Info # Search for server to move $UserEntryVM = Read-Host "Enter the Virtual Machine you would like to move" IF ( -NOT (Get-VM $UserEntryVM)) { THROW "Could not find $UserEntryVM." } $VMToMove = Get-VM $UserEntryVM #EndRegion #Region Source Cluster And Host # Get Cluster and VMHost server is on $SourceCluster = $VMToMove.VMHost.Parent $SourceHost = $VMToMove.VMHost Write-Host Write-Host "The Details of the Source machine are:" Write-Host Write-Host "Server to Move:`t`t$VMToMove" Write-Host "Source Cluster Name:`t$SourceCluster" Write-Host "Source Host:`t`t$SourceHost" Write-Host "" $UserResponse = Read-Host "Is This Informaiton Correct? (y/n)" IF ($UserResponse.length -ne 0) { IF ("y","Y" -NotContains $UserResponse) { THROW "INVALID ENV."} } #EndRegion #Region Destination Cluster And Host # Gather Destination VMWare Host Information Write-Host Write-Host "Which Cluster would you like to move $VMToMove to?" $ESXClusters = (Get-Cluster) $i = 0 FOREACH ( $Cluster IN $ESXClusters ) { $i++ write-host "`t$i) $Cluster" } Write-Host "" [int]$UserInput = Read-Host "Please make selection above (1 - $i)" $ChosenCluster = $ESXClusters[($UserInput-1)] $ClusterHosts = ( Get-VMHost -State Connected -Location "$ChosenCluster" ) Write-Host Write-Host "This list does not list hosts in Maintenance Mode" Write-Host "Which Host would you like to move $VMToMove to?" $i = 0 FOREACH ( $ESXHost IN $ClusterHosts ) { $i++ write-host "`t$i) $ESXHost" } Write-Host "" [int]$UserInput = Read-Host "Please make selection above (1 - $i)" $ChosenHost = $ClusterHosts[($UserInput-1)] #EndRegion #Region Validate Input # Clear-Host Write-Host "" Write-Host "Below is what you want to do:" Write-Host "-----------------------------" Write-Host "Server To Move:`t`t$VMToMove" Write-Host "Source Cluster:`t`t$SourceCluster" Write-Host "Source Host Name:`t$SourceHost" Write-Host "" Write-Host "The Details of Destination ESX Host are:" Write-Host "----------------------------------------" Write-Host "Destination Cluster:`t$ChosenCluster" Write-Host "Destination Host:`t$ChosenHost" Write-Host "" $UserMoveResponse = Read-Host "IS ALL THIS INFORMATION CORRECT? (y/n)" IF ($UserMoveResponse.length -ne 0) { IF ("y","Y" -NotContains $UserMoveResponse) { THROW "INVALID ENV."} } #EndRegion #EndRegion #Region Moving Server, Reboot, Update VMWare Tools # Shutdown VM Write-Host "Shutting Down $VMToMove" Shutdown-VMGuest $VMToMove -Confirm:$false WHILE ( $VMState = get-vm $VMToMove | WHERE {$_.PowerState -ne "PoweredOff"}) {start-sleep -Seconds 5} Write-Host "$VMToMove is now off, beginning move from $SourceHost to $ChosenHost" # Move VM Get-VM $VMToMove | Move-VM -destination (Get-VMHost "$ChosenHost") -Confirm:$false # Validate the move # Power On VM start-vm $VMToMove -Confirm:$false WHILE ( $VMState = get-vm $VMToMove | WHERE {$_.PowerState -ne "PoweredOn"}) {start-sleep -Seconds 5} WHILE ( Get-Task | WHERE {$_.Name -eq "PowerOnVM_Task" -and $_.State -ne "Success" } ) { Start-Sleep -Seconds 5 ; Get-VMQuestion | Set-VMQuestion –Default -Confirm:$False } Write-Host "$VMToMove is powering up. This should take a minute" # update vmware tools WHILE ( -NOT ( test-connection $VMToMove -quiet ) ) {start-sleep -Seconds 5} DO {start-sleep -Seconds 45} WHILE ( get-service -ComputerName $VMToMove -name VMTools | WHERE {$_.status -ne "running"}) Start-Sleep -Seconds 15 Write-Host "Server is online, trying to update tools..." Update-Tools $VMToMove #EndRegion Write-Host "Server is rebooting after VMWare Tools Install..." DO {start-sleep -Seconds 15} WHILE (!( test-connection $VMToMove )) $TimeSpan = New-TimeSpan -Start $starttime Write-Host "Server should be up..." Write-Host "" Write-Host "Pretty cool... Huh? This move took $TimeSpan.Minutes,$TimeSpan.Seconds" Write-Host "" Write-Host "You're Done! Please VALIDATE that the machine is running :)" |