PowerShell History (PSReadline)

Get PowerShell History Size for all Users (for example on a Jumphost)

This little CMDLET is usefull to collect the Size of the PowerShell History from PowerShell-Module PSReadline. A big "ConsoleHost_history.txt" File can cause performance problems with PowerShell.

$UserPaths = (Get-ChildItem "C:\Users" | ? {$_.Mode -match "d----l"}).FullName
 
Foreach ($UserPath in $UserPaths) {
    New-Object psobject -Property @{
        UserPath = $UserPath
        SizeKB = ([Math]::Round((Get-ItemProperty "$UserPath\AppData\Roaming\Microsoft\Windows\PowerShell\PSReadline\ConsoleHost_history.txt").Length /1KB,2))
    } 
}

More Information about this Bug: https://github.com/lzybkr/PSReadLine/issues/537
-> It is fixed in PSReadline Version 2.0 and does ship in Windows 10 1809.