How to Check Whether a Specific Service Exists Using Powershell?
Introduction According to This Documentation It Is Possible to Check Which Services Have Been Stopped on Windows by Executing the Following Command...
Introduction
According to this documentation it is possible to check which services have been stopped on Windows by executing the following command:
Get-Service | Where-Object {$_.status -eq "stopped"}
in PowerShell.
Question
Which command needs to be issued in PowerShell in order to check whether a certain service, e.g. tomcat8 exists?
3 Answers
You can specify the service name using the -Name attribute. By default if it doesn't see a matching service it will give an error. Using -ErrorAction SilentlyContinue you can get an empty variable back.
$service = Get-Service -Name W32Time -ErrorAction SilentlyContinue
Once you have that you can just see if the length is greater than 0.
if ($service.Length -gt 0) {
# Do cool stuff
}
This is a slightly cleaner solution than the accepted answer:
$service = Get-Service -Name MSSQLSERVER -ErrorAction SilentlyContinue
if($service -eq $null)
{
# Service does not exist
} else {
# Service does exist
}
In my opinion, checking it for NULL makes more sense semantically than checking for the length property.
This is tested and working in this version of PowerShell:
Major Minor Patch PreReleaseLabel BuildLabel
----- ----- ----- --------------- ----------
7 0 3
I cannot speak to other versions of PowerShell, but please comment if you have issues.
Providing the service DHCP in fact exists, using $(Get-Service dhcp) -eq $null will return false. However, $(Get-Service dhcp) -ne $null will return true
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