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Working with Objects in PowerShell: The Heart of the Shell

PowerShell is fundamentally object-oriented, unlike traditional text-based shells such as Cmd.exe or Bash. In the pipeline, structured objects—not plain text—are passed between commands, enabling powerful and efficient operations without fragile text parsing. Mastering objects is essential for effective use of PowerShell, requiring no deep programming knowledge, only an understanding of properties, methods, and cmdlets that manipulate them.

PowerShell ObjectsProperties and MethodsObject PipelineImport and Export Objects

~2 min read • Updated Dec 21, 2025

1. Introduction to Objects: The Spreadsheet Analogy


Objects in PowerShell can be understood through the analogy of a spreadsheet. Each row represents an object, columns represent properties, and the entire sheet is a collection. Objects are structured .NET types stored in memory, enabling manipulation without text parsing.


2. Object Members: Properties, Methods, and Events


  • Properties: Attributes of the object (read-only or read/write).
  • Methods: Actions the object can perform.
  • Events: Notifications triggered by object state changes.

Use Get-Member (alias: gm) to inspect object members and TypeName.


3. Core Cmdlets for Working with Objects


  • Sort-Object: Sorts objects by properties.
  • Select-Object: Chooses properties, subsets, or creates custom properties.
  • Where-Object: Filters objects based on conditions.
  • Group-Object: Groups objects by property values.
  • Measure-Object: Performs counts, averages, sums, etc.
  • ForEach-Object: Processes objects one by one.

4. Importing, Exporting, and Converting Objects


  • Export-CSV / Import-CSV: For flat data with simple properties.
  • ConvertTo-HTML: Generates reports.
  • Export-CliXML / Import-CliXML: Preserves full object structure.
  • Compare-Object: Compares configurations or baselines.

5. Conclusion


PowerShell distinguishes itself by passing objects through the pipeline rather than plain text. Understanding properties, methods, and object-oriented cmdlets allows administrators to harness the full power of PowerShell for efficient automation and system management.


Written & researched by Dr. Shahin Siami

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