Assure only 1 instance of PowerShell Script is Running at any given Time

Question

I am writing a batch script in PowerShell v1 that will get scheduled to run let\'s say once every minute. Inevitably, there will come a time when the job needs more than 1 m

Answer 1

$otherScriptInstances=get-wmiobject win32_process | where{$_.processname -eq 'powershell.exe' -and $_.ProcessId -ne $pid -and $_.commandline -match $($MyInvocation.MyCommand.Path)}
if ($otherScriptInstances -ne $null)
{
    "Already running"
    cmd /c pause
}else
{
    "Not yet running"
    cmd /c pause
}

You may want to replace

$MyInvocation.MyCommand.Path (FullPathName)

with

$MyInvocation.MyCommand.Name (Scriptname)