19 PowerShell One-Liners Every Admin Should Know

PowerShell is one of the most powerful tools in a Windows Server admin’s toolbox. Whether you’re optimizing performance, automating routine maintenance, or supporting systems that include cloud backup tools like WholesaleBackup, these one-liners help you work smart, stay efficient, and respond fast.

1. Get-Service

Check the status of a service (running/stopped).

Get-Service -Name "WSBUDemoS3"

• Perfect for confirming if the WholesaleBackup agent is active.

• Add -ComputerName for remote queries.

2. Stop-Service

Stop a running service.

Stop-Service -Name "WSBUDemoS3"

• Useful for halting backups or schedulers during maintenance.
• -Force for stuck services.

3. Start-Service

Start a service that’s currently stopped.

Start-Service -Name "WSBUDemoS3"

• Quickly re-enable backup services after a reboot.

3. Start-Service

Start a service that’s currently stopped.

Start-Service -Name "WSBUDemoS3"

• Quickly re-enable backup services after a reboot.

4. Restart-Service

Stop and start a service in one go.

Restart-Service -Name "WSBUDemoS3"

• Helps apply config changes without rebooting the machine.

5. Get-Process

View running processes and their resource usage.

Get-Process

• To isolate WholesaleBackup usage:
  Get-Process -Name "WSBUDemoS3*" | Select-Object Name, CPU, Id

• Or find the top CPU consumers:
  Get-Process | Sort-Object CPU -Descending | Select-Object -First 10

6. Stop-Process

Kill a specific running process.

Stop-Process -Name "WSBUDemoS3_scheduler" -Force

• Use for stuck services not responding to Stop-Service.

7. Get-EventLog

Read system or application logs.

Get-EventLog -LogName System -Newest 50

• Swap in “Application” to see errors related to backup jobs.

8. Clear-EventLog

Clean up event logs after investigation.

Clear-EventLog -LogName System

• Helps keep log sizes manageable.
• Admin rights required.

9. Get-Counter (CPU Load)

Live snapshot of CPU usage.

Get-Counter "\Processor(_Total)\% Processor Time"

• Use -SampleInterval 1 -MaxSamples 5 to monitor over time.

10. CPU Load (Friendly Format)

Readable CPU load output.

$cpu = (Get-Counter "\Processor(_Total)\% Processor Time" -SampleInterval 1 -MaxSamples 1).CounterSamples[0].CookedValue
"CPU Load: %" -f $cpu

• Easier to read and report on in scripts or alerts.

11. Get Memory Usage

Measure current memory usage.

$os = Get-CimInstance Win32_OperatingSystem
$used = ($os.TotalVisibleMemorySize - $os.FreePhysicalMemory) / 1KB
$total = $os.TotalVisibleMemorySize / 1KB
"Memory used: %" -f ($used / $total * 100)

• Great for catching memory leaks.

12. Get-Disk

View all physical disks.

Get-Disk

• Check available space before triggering a backup.

13. Get-Volume

Inspect logical volumes and their free space.

Get-Volume

• Use to validate storage capacity for local/attached backup drives.

14. Get-NetIPAddress

Show all current IP addresses.

Get-NetIPAddress

• Helps troubleshoot when backup uploads aren’t reaching cloud targets.

15. Test-Connection

Ping another machine or domain.

Test-Connection -ComputerName wholesalebackup.com

• Confirm external connectivity from your Windows Server.

16. Retrieve Running Services via SSH

Run PowerShell commands remotely over SSH.

ssh Administrator@yourserverip "powershell -Command "

• Cross-platform and secure — great when WinRM isn't available.

17. Clean Up Temp Files and Recycle Bin

Reclaim disk space safely.

Remove-Item -Path "$env:TEMP\*" -Recurse -Force
Clear-RecycleBin -Force

• Schedule weekly for hands-off disk hygiene.

18. List All Scheduled Tasks

Inspect scheduled jobs (like backup tasks).

Get-ScheduledTask | Where-Object

• Useful for confirming the presence of scheduled backups.

19. Export Running Services Report

Export all running services to a CSV.

Get-Service | Where-Object Status -eq 'Running' | Export-Csv C:\Temp\running_services.csv -NoTypeInformation

• Quickly audit what’s running, or share logs with a support team.

Wrapping Up

PowerShell is one of the most powerful tools in a Windows Server admin’s toolbox. From managing resource bottlenecks to automating cleanup tasks—and even safely closing applications like Outlook before backup—these scripts help you work smart and respond fast, especially when managing cloud backups with WholesaleBackup.