This week I am teaching a PowerShell v2.0 class at Benchmark Learning. During the class I usually show the following demo.
# Get the current running processes $Baseline = Get-Process # Create some new processes Calc Notepad # Capture the current running processes $Now = Get-Process # Compare the two variables Compare-Object $Baseline $Now
The students thought that was pretty cool, but wanted to know how to kill the processes that were not in the $Baseline variable. Well, here you go…
# Get the current running processes
$Baseline = Get-Process
# Create some new processes
Calc
Notepad
# Capture the current running processes
$Now = Get-Process
# Compare the two variables
$Processes = Compare-Object $Baseline $Now
foreach ($i in $processes) {$i.inputObject | Stop-Process}