PowerShell

Windows automation and scripting. Manage systems, files, processes, and cloud resources with PowerShell cmdlets.

94 commands

Browse by Topic

Getting Started

Quick setup and installation

3commands

Files

File operations

12commands

Processes

Process management

8commands

System

System information

12commands

Network

Network operations

8commands

Objects

Object manipulation

12commands

Pipeline

Pipeline operations

16commands

Modules

Module management

10commands

Remoting

Remote sessions

13commands

Install PowerShell (macOS)

$ brew install powershell

Install PowerShell using Homebrew on macOS

Check PowerShell version

$ pwsh --version

Verify PowerShell is installed and display the current version

Launch PowerShell

$ pwsh

Start an interactive PowerShell session

List files recursively

$ Get-ChildItem -Recurse

List all files and folders recursively.

Copy files

$ Copy-Item -Path src -Destination dest -Recurse

Copy files or directories.

Move files

$ Move-Item -Path src -Destination dest

Move files or directories.

Remove files

$ Remove-Item -Path file -Recurse -Force

Delete files or directories.

Create directory

$ New-Item -ItemType Directory -Path folder

Create a new folder.

Read file content

$ Get-Content file.txt

Read file contents.

Write to file

$ Set-Content -Path file.txt -Value "content"

Write content to file.

Append to file

$ Add-Content -Path file.txt -Value "new line"

Append content to existing file.

Check path exists

$ Test-Path -Path file.txt

Check if file or folder exists.

Find files by pattern

$ Get-ChildItem -Recurse -Include *.log

Find files matching pattern.

Get file hash

$ Get-FileHash -Path file.txt -Algorithm SHA256

Calculate file checksum.

Rename file

$ Rename-Item -Path old.txt -NewName new.txt

Rename a file or folder.

List processes

$ Get-Process

List all running processes.

Kill process by name

$ Stop-Process -Name notepad

Stop process by name.

Kill process by ID

$ Stop-Process -Id 1234

Stop process by PID.

Start process

$ Start-Process notepad

Start a new process.

Start as admin

$ Start-Process powershell -Verb RunAs

Start process with elevation.

Top CPU processes

$ Get-Process | Sort-Object CPU -Descending | Select-Object -First 10

Show top CPU-consuming processes.

Top memory processes

$ Get-Process | Sort-Object WorkingSet -Descending | Select-Object -First 10

Show top memory-consuming processes.

Wait for process

$ Wait-Process -Name notepad

Wait for process to exit.

Get system info

$ Get-ComputerInfo

Display detailed system information.

Get OS version

$ [Environment]::OSVersion

Display OS version.

Check execution policy

$ Get-ExecutionPolicy

Show current execution policy.

Set execution policy

$ Set-ExecutionPolicy RemoteSigned -Scope CurrentUser

Set script execution policy.

Get services

$ Get-Service

List all Windows services.

Start service

$ Start-Service -Name ServiceName

Start a Windows service.

Stop service

$ Stop-Service -Name ServiceName

Stop a Windows service.

Restart service

$ Restart-Service -Name ServiceName

Restart a Windows service.

Get environment variable

$ $env:PATH

Get environment variable value.

Set environment variable

$ $env:MY_VAR = "value"

Set environment variable.

Get event logs

$ Get-EventLog -LogName System -Newest 10

View recent system events.

Get disk space

$ Get-PSDrive -PSProvider FileSystem

Show disk space usage.

Test connection

$ Test-NetConnection google.com -Port 443

Test network connection to host:port.

Get IP addresses

$ Get-NetIPAddress

List all IP addresses.

DNS lookup

$ Resolve-DnsName google.com

Resolve DNS name.

HTTP request

$ Invoke-WebRequest -Uri https://api.example.com

Make HTTP request.

REST API call

$ Invoke-RestMethod -Uri https://api.example.com/data

Call REST API (auto-parses JSON).

Download file

$ Invoke-WebRequest -Uri https://example.com/file.zip -OutFile file.zip

Download file from URL.

Get network adapters

$ Get-NetAdapter

List network adapters.

Get TCP connections

$ Get-NetTCPConnection | Where-Object State -eq 'Established'

Show established TCP connections.

Create hashtable

$ $hash = @{ Key1 = 'Value1'; Key2 = 'Value2' }

Create a hashtable.

Access hashtable

$ $hash['Key1'] # or $hash.Key1

Get value from hashtable.

Add to hashtable

$ $hash['NewKey'] = 'NewValue'

Add key-value to hashtable.

Create custom object

$ [PSCustomObject]@{ Name = 'John'; Age = 30 }

Create custom object from hashtable.

Splatting

$ $params = @{ Path = 'C:\'; Recurse = $true }; Get-ChildItem @params

Pass parameters via hashtable.

Get object members

$ Get-Process | Get-Member

View properties and methods of object.

Access property

$ $obj.PropertyName

Access object property.

Call method

$ $string.ToUpper()

Call method on object.

Create array

$ $arr = @(1, 2, 3, 4, 5)

Create array of values.

Add to array

$ $arr += 6

Append to array.

JSON to object

$ $obj = Get-Content data.json | ConvertFrom-Json

Parse JSON to PowerShell object.

Object to JSON

$ $obj | ConvertTo-Json -Depth 5

Convert object to JSON string.

List installed modules

$ Get-Module -ListAvailable

Show all installed modules.

Get loaded modules

$ Get-Module

Show currently loaded modules.

Find module

$ Find-Module -Name Az*

Search PowerShell Gallery.

Install module

$ Install-Module -Name ModuleName -Scope CurrentUser

Install module from Gallery.

Update module

$ Update-Module -Name ModuleName

Update installed module.

Uninstall module

$ Uninstall-Module -Name ModuleName

Remove installed module.

Import module

$ Import-Module -Name ModuleName

Load module into session.

Remove module

$ Remove-Module -Name ModuleName

Unload module from session.

Get module commands

$ Get-Command -Module ModuleName

List commands in module.

Install PSResourceGet

$ Install-Module Microsoft.PowerShell.PSResourceGet

Install new package manager.

Enable remoting

$ Enable-PSRemoting -Force

Enable PowerShell remoting.

Enter remote session

$ Enter-PSSession -ComputerName Server01

Start interactive remote session.

Exit remote session

$ Exit-PSSession

End interactive remote session.

Run remote command

$ Invoke-Command -ComputerName Server01 -ScriptBlock { Get-Process }

Execute command on remote computer.

Run on multiple computers

$ Invoke-Command -ComputerName Server01,Server02 -ScriptBlock { hostname }

Run command on multiple hosts.

Create persistent session

$ $session = New-PSSession -ComputerName Server01

Create reusable remote session.

Use persistent session

$ Invoke-Command -Session $session -ScriptBlock { Get-Service }

Run command in existing session.

Close session

$ Remove-PSSession -Session $session

Close remote session.

Copy to remote

$ Copy-Item -Path file.txt -Destination C:\Temp -ToSession $session

Copy file to remote computer.

Copy from remote

$ Copy-Item -Path C:\Temp\file.txt -Destination . -FromSession $session

Copy file from remote computer.

Remote with credentials

$ $cred = Get-Credential; Enter-PSSession -ComputerName Server01 -Credential $cred

Connect with alternate credentials.

SSH remoting

$ Enter-PSSession -HostName user@linux-host -SSHTransport

Connect via SSH (PS 7+).

Parallel execution

$ Invoke-Command -ComputerName $servers -ScriptBlock { } -ThrottleLimit 10

Run in parallel with throttle.

Discussion

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PowerShell

Windows automation and scripting. Manage systems, files, processes, and cloud resources with PowerShell cmdlets.

94 commands

Browse by Topic

Getting Started

Quick setup and installation

3commands

Files

File operations

12commands

Processes

Process management

8commands

System

System information

12commands

Network

Network operations

8commands

Objects

Object manipulation

12commands

Pipeline

Pipeline operations

16commands

Modules

Module management

10commands

Remoting

Remote sessions

13commands

Install PowerShell (macOS)

$ brew install powershell

Install PowerShell using Homebrew on macOS

Check PowerShell version

$ pwsh --version

Verify PowerShell is installed and display the current version

Launch PowerShell

$ pwsh

Start an interactive PowerShell session

List files recursively

$ Get-ChildItem -Recurse

List all files and folders recursively.

Copy files

$ Copy-Item -Path src -Destination dest -Recurse

Copy files or directories.

Move files

$ Move-Item -Path src -Destination dest

Move files or directories.

Remove files

$ Remove-Item -Path file -Recurse -Force

Delete files or directories.

Create directory

$ New-Item -ItemType Directory -Path folder

Create a new folder.

Read file content

$ Get-Content file.txt

Read file contents.

Write to file

$ Set-Content -Path file.txt -Value "content"

Write content to file.

Append to file

$ Add-Content -Path file.txt -Value "new line"

Append content to existing file.

Check path exists

$ Test-Path -Path file.txt

Check if file or folder exists.

Find files by pattern

$ Get-ChildItem -Recurse -Include *.log

Find files matching pattern.

Get file hash

$ Get-FileHash -Path file.txt -Algorithm SHA256

Calculate file checksum.

Rename file

$ Rename-Item -Path old.txt -NewName new.txt

Rename a file or folder.

List processes

$ Get-Process

List all running processes.

Kill process by name

$ Stop-Process -Name notepad

Stop process by name.

Kill process by ID

$ Stop-Process -Id 1234

Stop process by PID.

Start process

$ Start-Process notepad

Start a new process.

Start as admin

$ Start-Process powershell -Verb RunAs

Start process with elevation.

Top CPU processes

$ Get-Process | Sort-Object CPU -Descending | Select-Object -First 10

Show top CPU-consuming processes.

Top memory processes

$ Get-Process | Sort-Object WorkingSet -Descending | Select-Object -First 10

Show top memory-consuming processes.

Wait for process

$ Wait-Process -Name notepad

Wait for process to exit.

Get system info

$ Get-ComputerInfo

Display detailed system information.

Get OS version

$ [Environment]::OSVersion

Display OS version.

Check execution policy

$ Get-ExecutionPolicy

Show current execution policy.

Set execution policy

$ Set-ExecutionPolicy RemoteSigned -Scope CurrentUser

Set script execution policy.

Get services

$ Get-Service

List all Windows services.

Start service

$ Start-Service -Name ServiceName

Start a Windows service.

Stop service

$ Stop-Service -Name ServiceName

Stop a Windows service.

Restart service

$ Restart-Service -Name ServiceName

Restart a Windows service.

Get environment variable

$ $env:PATH

Get environment variable value.

Set environment variable

$ $env:MY_VAR = "value"

Set environment variable.

Get event logs

$ Get-EventLog -LogName System -Newest 10

View recent system events.

Get disk space

$ Get-PSDrive -PSProvider FileSystem

Show disk space usage.

Test connection

$ Test-NetConnection google.com -Port 443

Test network connection to host:port.

Get IP addresses

$ Get-NetIPAddress

List all IP addresses.

DNS lookup

$ Resolve-DnsName google.com

Resolve DNS name.

HTTP request

$ Invoke-WebRequest -Uri https://api.example.com

Make HTTP request.

REST API call

$ Invoke-RestMethod -Uri https://api.example.com/data

Call REST API (auto-parses JSON).

Download file

$ Invoke-WebRequest -Uri https://example.com/file.zip -OutFile file.zip

Download file from URL.

Get network adapters

$ Get-NetAdapter

List network adapters.

Get TCP connections

$ Get-NetTCPConnection | Where-Object State -eq 'Established'

Show established TCP connections.

Create hashtable

$ $hash = @{ Key1 = 'Value1'; Key2 = 'Value2' }

Create a hashtable.

Access hashtable

$ $hash['Key1'] # or $hash.Key1

Get value from hashtable.

Add to hashtable

$ $hash['NewKey'] = 'NewValue'

Add key-value to hashtable.

Create custom object

$ [PSCustomObject]@{ Name = 'John'; Age = 30 }

Create custom object from hashtable.

Splatting

$ $params = @{ Path = 'C:\'; Recurse = $true }; Get-ChildItem @params

Pass parameters via hashtable.

Get object members

$ Get-Process | Get-Member

View properties and methods of object.

Access property

$ $obj.PropertyName

Access object property.

Call method

$ $string.ToUpper()

Call method on object.

Create array

$ $arr = @(1, 2, 3, 4, 5)

Create array of values.

Add to array

$ $arr += 6

Append to array.

JSON to object

$ $obj = Get-Content data.json | ConvertFrom-Json

Parse JSON to PowerShell object.

Object to JSON

$ $obj | ConvertTo-Json -Depth 5

Convert object to JSON string.

List installed modules

$ Get-Module -ListAvailable

Show all installed modules.

Get loaded modules

$ Get-Module

Show currently loaded modules.

Find module

$ Find-Module -Name Az*

Search PowerShell Gallery.

Install module

$ Install-Module -Name ModuleName -Scope CurrentUser

Install module from Gallery.

Update module

$ Update-Module -Name ModuleName

Update installed module.

Uninstall module

$ Uninstall-Module -Name ModuleName

Remove installed module.

Import module

$ Import-Module -Name ModuleName

Load module into session.

Remove module

$ Remove-Module -Name ModuleName

Unload module from session.

Get module commands

$ Get-Command -Module ModuleName

List commands in module.

Install PSResourceGet

$ Install-Module Microsoft.PowerShell.PSResourceGet

Install new package manager.

Enable remoting

$ Enable-PSRemoting -Force

Enable PowerShell remoting.

Enter remote session

$ Enter-PSSession -ComputerName Server01

Start interactive remote session.

Exit remote session

$ Exit-PSSession

End interactive remote session.

Run remote command

$ Invoke-Command -ComputerName Server01 -ScriptBlock { Get-Process }

Execute command on remote computer.

Run on multiple computers

$ Invoke-Command -ComputerName Server01,Server02 -ScriptBlock { hostname }

Run command on multiple hosts.

Create persistent session

$ $session = New-PSSession -ComputerName Server01

Create reusable remote session.

Use persistent session

$ Invoke-Command -Session $session -ScriptBlock { Get-Service }

Run command in existing session.

Close session

$ Remove-PSSession -Session $session

Close remote session.

Copy to remote

$ Copy-Item -Path file.txt -Destination C:\Temp -ToSession $session

Copy file to remote computer.

Copy from remote

$ Copy-Item -Path C:\Temp\file.txt -Destination . -FromSession $session

Copy file from remote computer.

Remote with credentials

$ $cred = Get-Credential; Enter-PSSession -ComputerName Server01 -Credential $cred

Connect with alternate credentials.

SSH remoting

$ Enter-PSSession -HostName user@linux-host -SSHTransport

Connect via SSH (PS 7+).

Parallel execution

$ Invoke-Command -ComputerName $servers -ScriptBlock { } -ThrottleLimit 10

Run in parallel with throttle.

Discussion

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