Working with Objects

PowerShell is fundamentally different from traditional command-line interfaces because it is object-oriented. Instead of working with plain text, PowerShell commands output structured units called objects. Each object contains both properties—which hold data—and methods—which are actions that can be performed on the object. This approach allows you to manipulate data more precisely, filter information efficiently, and build robust automation scripts. Understanding objects is essential for making the most of PowerShell’s capabilities, especially when working with complex data or chaining commands together in pipelines.

When you use a command like Get-Process, PowerShell returns a collection of process objects. Each process object has properties such as ProcessName, Id, CPU, and more. You can access any property using the dot notation. For example, $process.Id gives you the process ID. Beyond properties, objects also have methods, which are built-in actions you can call. For instance, if you store a process object in a variable, you can use $process.Kill() to stop that process. This ability to access both data and functionality through objects is what makes PowerShell so powerful for automation and administration.