Log Desensitiser

I created the below PowerShell script to sanitise log files by removing known hostnames and IPv4 addresses.

$nl = [Environment]::NewLine
Write-Host "Welcome to the Log Desensitiser Tool - Author Nick Beare
$nl
This tool can read a txt or csv file and replace all instances of IP V4 addresses with 'IP_ADDRESS', and all Corporate hostnames using the PV, CT and CBR naming conventions with 'HOSTNAME'."
$nl
$log = Read-Host "Please enter the full path of the log you would like desensitised eg c:\logs\log.txt"
(Get-Content $log) | 
Foreach-Object {
    $_ -replace '\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}', "IP_ADDRESS" -replace 'PV\D\D\D.\d\d', "HOSTNAME" -replace 'CT\d\d.', "HOSTNAME" -replace 'CBR\D\D..', "HOSTNAME"
    } | 
Set-Content $log
$nl
Write-Host "$log has been desensitised, goodbye."

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Log Desensitiser.txt - Notepad

Log Desensitiser