Powershell Commands - CMDSheet

Powershell CMDSheet

• PowerShell provides an extensive set of commands to handle various administrative and scripting tasks.
• Below is a categorized list of PowerShell commands commonly used by system administrators and IT professionals.

File System Management

Command	Description
Get-ChildItem	Lists files and directories in the specified path.
New-Item	Creates a new file or directory.
Remove-Item	Deletes files or directories.
Copy-Item	Copies files or directories.
Move-Item	Moves files or directories.

Example:

Get-ChildItem -Path C:\Scripts -Recurse

Service Management

Command	Description
Get-Service	Lists all services on the system.
Start-Service	Starts a specific service.
Stop-Service	Stops a specific service.
Restart-Service	Restarts a specific service.

Example:

Restart-Service -Name "Spooler"

Process Management

Command	Description
Get-Process	Lists running processes.
Stop-Process	Stops a running process.
Start-Process	Starts a new process.

Example:

Get-Process | Where-Object { $_.CPU -gt 100 }

Environment Variables

Command	Description
$Env:<Variable>	Accesses environment variables.
[Environment]::SetEnvironmentVariable	Sets a new environment variable.

Example:

$Env:Path
[Environment]::SetEnvironmentVariable("MyVar", "Value", "User")

Networking

Command	Description
Test-Connection	Pings a remote system.
Get-NetIPAddress	Retrieves network adapter IP configurations.
New-NetIPAddress	Assigns a static IP address.

Example:

Test-Connection -ComputerName "google.com" -Count 3

User and Group Management

Command	Description
Get-LocalUser	Lists local user accounts.
New-LocalUser	Creates a new local user.
Add-LocalGroupMember	Adds a user to a local group.

Example:

Get-LocalUser

File Parsing

• JSON

  # Parse JSON file
  $jsonContent = Get-Content -Path .\data.json | ConvertFrom-Json
  $jsonContent
  

• YAML

  • Install the powershell-yaml module:

  Install-Module -Name powershell-yaml
  

  • Parse YAML:

  $yamlContent = Get-Content -Path .\data.yaml | ConvertFrom-Yaml
  $yamlContent
  

• CSV

  # Parse CSV file
  $csvContent = Import-Csv -Path .\data.csv
  $csvContent
  

• XML

  # Parse XML file
  $xmlContent = [xml](Get-Content -Path .\data.xml)
  $xmlContent
  

Operators

• For Loop

  for ($i = 1; $i -le 5; $i++) {
    Write-Output "Number: $i"
  }
  

• Do-While Loop

  $count = 1
  do {
      Write-Output "Count: $count"
      $count++
  } while ($count -le 5)
  

• ForEach

  $items = 1..5
  foreach ($item in $items) {
      Write-Output "Processing item: $item"
  }
  

Miscellaneous Commands

Command	Description
Get-EventLog	Retrieves system event logs.
Export-Clixml	Exports data to an XML file.
Export-Csv	Exports data to a CSV file.

Example:

Get-EventLog -LogName System -Newest 10 | Export-Csv -Path .\eventlog.csv -NoTypeInformation