⚡ PowerShell One-Liners¶

Quick, reliable commands for automation, AD management, and system diagnostics.

🔍 System Info & Diagnostics¶

Get-ComputerInfo | Select-Object CsName, WindowsVersion, OsArchitecture
# Shows hostname, Windows version, and architecture

Get-Process | Sort-Object CPU -Descending | Select-Object -First 5
# Top 5 CPU-consuming processes

Get-EventLog -LogName System -EntryType Error -Newest 10
# Last 10 system errors

Get-ADUser -Filter * -SearchBase "OU=Staff,DC=corp,DC=local" | Select Name, Enabled
# Lists all users in Staff OU with their enabled status

Enable-ADAccount -Identity "jdoe"
# Re-enables a disabled user account

Set-ADUser -Identity "jdoe" -Title "IT Support" -Department "Technology"
# Updates user title and department

Get-ADGroupMember -Identity "VPN_Users" | Select Name, SamAccountName
# Lists members of the VPN_Users group

Get-ADUser -Identity "jdoe" -Properties MemberOf | Select-Object -ExpandProperty MemberOf
# Shows all groups a user belongs to

Add-ADGroupMember -Identity "RemoteAccess" -Members "jdoe"
# Adds user to RemoteAccess group

Get-Package | Sort-Object Name
# Lists installed packages alphabetically

Install-Module -Name PSReadLine -Force
# Installs or updates PSReadLine module

Try { Get-Item "C:\Temp\file.txt" } Catch { Write-Warning "File not found." }
# Graceful error handling for missing file

Test-Connection -ComputerName "server01" -Count 2 -Quiet
# Returns True/False for ping success

Get-ChildItem "C:\Logs" -Recurse -Include *.log | Remove-Item -Force
# Deletes all .log files under C:\Logs

Clear-EventLog -LogName Application
# Clears Application event log

Task Manager

taskmgr

Last updated: October 2025 ```