PowerShell: Using PSExec with PowerShell
•2 min read•Ginja
I use this Commandlet that I made to scan computers into assets combining both a .vbs file and psexec to run it on a remote machine.
function Add-ToAssets {
param (
$computerName = $(Throw "Please specify a computer name"),
$explicit
)
if ($explicit -eq $null) {
$computerName = Search-Computer($computerName)
}
if ($computerName) {
$raescan = "\\$computerName\c$\ae_scan.vbs"
$rscanex = "c:\ae_scan.vbs"
$cmd = "cmd.exe /c $psexec \\$computerName cscript.exe $rscanex"
if (Test-Connection $computerName -quiet -count 1) {
Write-Host "---------------------------" -fore Gray
Write-Host "Adding $computerName to assets." -fore Red
Write-Host "---------------------------" -fore Gray
Copy-Item $aescan "\\$computerName\c$\" -ea Stop
Invoke-Expression $cmd -ea Stop
Remove-Item $raescan
} else {
Write-Host "---------------------------" -fore Gray
Write-Host "Computer $computerName is unreachable." -fore Red
Write-Host "---------------------------" -fore Gray
}
}
}
I will go through this line by line and explain how it works.
The magic really happens with:
$cmd = "cmd.exe /c $psexec \\$computerName cscript.exe $rscanex"
and
Invoke-Expression $cmd -ea Stop
The invoke-expression is a very powerful commandlet in itself.
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