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You can use the Get-Service cmdlet to get a list of all the services installed on the Windows operating systems, their status and startup type. This one and other cmdlets to get the status and management of Windows services first time appeared in Powershell 1.0. In this article we will demonstrate typical examples of Get-Service cmdlet usage to get the status of a service on local or remote computers, the type of services startup, also we’ll cover how to determine the dependencies of services.
You can get a list of services on a local or remote computer by using the Get-Service cmdlet. Get-Service command without parameters returns a list of all services on the local system.
Use Get-Service to Check Windows Service Status
This command will list all local Windows services, their status (running or stopped) and display name.
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To save the service list to a text file for future investigation, use the Out-File cmdlet:
Get-Service | Out-File "C:\PS\Current_Services.txt"
To get two or more service state, you need to specify its name divided by commas:
get-service bits, wuauserv
If you need to display only running services, use this command:
Get-Service | Where-Object {$_.Status -EQ "Running"}
The pipeline operator (|) passes the results to the Where-Object cmdlet, which selects only those services for which the Status parameter is set to “Running”. If you want to display only the stopped services, specify “Stopped”.
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You can get all the properties of the service object using the Get-Member.
get-service | get-member
As you can see, these objects have the Typename – System.ServiceProcess.ServiceController. The screenshot shows all the available properties and methods of service objects in the system (most of them are not used when displaying by default).
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To display specific properties of the service, use the next command. For example, we need to display the Display Name, status and features of the Windows Update (wuauserv) service:
get-service wuauserv | select Displayname,Status,ServiceName,Can*
DisplayName : Windows Update
Status : Stopped
CanPauseAndContinue : False
CanShutdown : False
CanStop : False
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You can find all services that can be paused and resumed without Windows restart:
Get-Service | Where-Object {$_.canpauseandcontinue -eq "True"}
For example, to get the type of Windows services startup type, run the command (works in PowerShell 5.1):
Get-Service | select -property name,starttype
You can filter the services list by the service name using the asterisk as a wildcard:
get-service wi*
Also, note that the PowerShell is not a not case-sensitive language. It means that the following command will return the equal results:
get-service win* get-service WIN*
To exclude some service from resulting list you can use the -Exclude option:
Get-Service -Name "win*" -Exclude "WinRM"
You can sort services in descending order by the value of the Status property (running services are displayed earlier than stopped):
get-service s* | sort-object status – Descending
How to Check if a Specific Service Exists via PowerShell?
If you want to check whether a specific Windows service in exist on current, you can use the following commands (usually used in various scripts):
$servicename = “SomeService”
if (Get-Service $servicename -ErrorAction SilentlyContinue)
{
Write-Host "$servicename exists"
# do something
}
Else {
Write-Host " $servicename not found"
# do something
}
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You can check if a specific Windows service exists on a list of remote computers/servers. To do this task you need to save the list of remote computers to the text file comp_list.txt in the simple format:
server1
server2
server3
PC21
PC34
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And run the following PowerShell script:
$servicename = "SomeService"
$list = get-content “c:\ps\comp_list.txt”
foreach ($server in $list) {
if (Get-Service $servicename -computername $server -ErrorAction 'SilentlyContinue'){
Write-Host "$servicename exists on $server "
# do something
}
else{write-host "No service $servicename found on $server."}
}
Use PowerShell to Check Service Status on a Remote Computer
You can use the Get-Service cmdlet to get the status of services not only on the local, but also on remote computers. To do this, use the –ComputerName parameter. You can use the NetBIOS, FQDN name or an IP address as a computer name. Connection to remote computers is established not through PowerShell Remoting (WinRM), but through Service Manager (similar to the sc.exe command).
get-service wuauserv -ComputerName remotePC1
In PowerShell v3 you can get the status of the service on multiple remote computers at once, their names must be separated by commas.
get-service spooler -ComputerName remotePC1,remotePC2, remotePC3| format-table Name,Status,Machinename –autosize
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Use the format-table cmdlet in this example to get a more convenient table with the list of the services status.
Also, you can get the services health on a list of remote computers that is being stored in a plain text file:
$list = get-content “c:\ps\comp_list.txt”
Get-Service -Computername (Get-Content -path “c:\ps\comp_list.txt”) -Name spooler | Select-Object MachineName,Name,Displayname,Status | Sort-Object Status
To restart a service on a remote computer, use the following command:
Get-Service wuauserv -ComputerName server1| Start-Service
Use Get-Service to Display Service Dependencies
The Get-Service cmdlet has two other useful parameters that you can use when managing Windows services. The DependentServices parameter returns services that depend on this service. The RequiredServices parameter returns the services on which this service depends.
The following command receives the services needed to start the LanmanWorkstation service.
Get-Service -Name LanmanWorkstation –RequiredServices
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The next command returns dependent services that require the LanmanWorkstation service.
Get-Service -Name LanmanWorkstation -DependentServices
If you manually stop all dependence services, you won’t be able to run your service. In order to automatically run all dependency services, use the following PowerShell one-liner:
get-service servicename | Foreach { start-service $_.name -passthru; start-service $_.DependentServices -passthru}
The post Get-service: Checking the Status of Windows Services with PowerShell appeared first on TheITBros.