Get-Member for object inspection in PowerShell - Step-by-Step Execution

Concept Flow - Get-Member for object inspection

Run Get-Command or Get-Process

↓

Pipe output to Get-Member

↓

Get-Member inspects object

↓

List properties and methods

↓

User reads object details

Get-Member takes objects from a command and shows their properties and methods so you can understand what you can do with them.

Execution Sample

PowerShell

Get-Process | Get-Member

This command shows all properties and methods of the objects output by Get-Process.

Execution Table

Step	Action	Input	Output
1	Run Get-Process	None	List of process objects
2	Pipe output to Get-Member	Process objects	Get-Member receives objects
3	Get-Member inspects first object	One process object	List of properties and methods
4	Display properties and methods	List of members	User sees object details
5	End	No more objects needed	Execution stops

💡 Get-Member inspects one object type and lists members, then stops.

Variable Tracker

Variable	Start	After Step 1	After Step 2	After Step 3	Final
Output	None	Process objects list	Process objects passed to Get-Member	Member list extracted	Member list displayed

Key Moments - 3 Insights

Why does Get-Member only show one set of properties and methods even if many objects are piped?

Get-Member inspects the first object type it receives and shows its members. It does not list members for each object separately. See execution_table row 3.

What is the difference between properties and methods shown by Get-Member?

Properties are data values of the object, like 'Id' or 'Name'. Methods are actions the object can perform, like 'Kill()'. This is shown in the output at execution_table row 4.

Can Get-Member change the objects it inspects?

No, Get-Member only reads the object structure and lists members. It does not modify the objects. This is why output remains unchanged after inspection (see variable_tracker).

Visual Quiz - 3 Questions

Look at the execution_table, what does Get-Member receive as input at Step 2?

A List of properties and methods

B No input

C List of process objects

D User commands

💡 Hint

Check execution_table row 2 under Input column.

At which step does Get-Member display the properties and methods to the user?

A Step 3

B Step 4

C Step 1

D Step 5

💡 Hint

See execution_table row 4 under Action and Output.

If Get-Process outputs no objects, what will Get-Member show?

A No output because no objects to inspect

B Error message

C List of properties and methods of the first object

D All properties and methods of all objects

💡 Hint

Think about what happens if Get-Member receives no input objects.

Concept Snapshot

Get-Member inspects objects passed through the pipeline.
It shows properties (data) and methods (actions) of the object.
It only inspects the first object type it receives.
Use it to explore what you can do with command outputs.
Syntax: <command> | Get-Member
Example: Get-Process | Get-Member

Full Transcript

Get-Member is a PowerShell command that helps you see what properties and methods an object has. When you run a command like Get-Process, it outputs objects representing running processes. By piping these objects to Get-Member, you ask PowerShell to look inside one of these objects and list all the data fields (properties) and actions (methods) it supports. This helps you understand what you can do with these objects in your scripts. Get-Member only looks at the first object it receives and shows its members. It does not change the objects or list members for each object separately. This makes it a useful tool to explore and learn about objects in PowerShell.

Practice

1. What is the main purpose of the Get-Member cmdlet in PowerShell?

easy

A. To execute a script block on an object

B. To list the properties and methods of an object

C. To delete an object from memory

D. To create a new object instance

Solution

1. Step 1: Understand what Get-Member does

   Get-Member shows the properties and methods available on an object, helping you explore it.

2. Step 2: Compare options with Get-Member purpose

   Options B, C, and D describe actions unrelated to inspecting object members.

3. Final Answer:

   To list the properties and methods of an object -> Option B

4. Quick Check:

   Get-Member = List properties and methods [OK]

Hint: Remember: Get-Member shows what an object has and can do [OK]

Common Mistakes:

• Thinking Get-Member runs code on the object
• Confusing Get-Member with object creation
• Assuming it deletes or modifies objects

2. Which of the following is the correct syntax to use Get-Member to inspect the properties of the output from Get-Process?

easy

A. Get-Process | Get-Member

B. Get-Member | Get-Process

C. Get-Process Get-Member

D. Get-Process > Get-Member

Solution

1. Step 1: Understand piping in PowerShell

   The pipe symbol | sends output from one command as input to another.

2. Step 2: Apply piping to Get-Process and Get-Member

   Correct syntax is Get-Process | Get-Member to inspect process objects.

3. Final Answer:

   Get-Process | Get-Member -> Option A

4. Quick Check:

   Pipe output to Get-Member = Get-Process | Get-Member [OK]

Hint: Use pipe (|) to send output to Get-Member [OK]

Common Mistakes:

• Reversing the order of commands
• Using spaces instead of pipe
• Trying to redirect output with >

3. What will be the output type when you run Get-Process | Get-Member -MemberType Property?

medium

A. List of properties of process objects

B. List of all processes running

C. List of methods of process objects

D. Error message about invalid syntax

Solution

1. Step 1: Understand the -MemberType Property filter

   This filter limits output to only properties of the object, excluding methods.

2. Step 2: Apply filter to Get-Process output

   The command lists only properties (like Id, ProcessName) of each process object.

3. Final Answer:

   List of properties of process objects -> Option A

4. Quick Check:

   MemberType Property = Properties listed [OK]

Hint: Use -MemberType Property to see only properties [OK]

Common Mistakes:

• Confusing properties with methods
• Expecting process list instead of members
• Assuming syntax error due to filter

4. You run the command Get-Process | Get-Member -MemberType ScriptMethod but get no output. What is the most likely reason?

medium

A. The -MemberType parameter is misspelled

B. The pipeline is missing before Get-Member

C. The objects returned by Get-Process have no methods

D. You used the wrong parameter value for -MemberType

Solution

1. Step 1: Check the -MemberType parameter value

   The correct value for methods is 'Method' (singular). Using a wrong value returns no results.

2. Step 2: Verify other options

   Options A and B would cause errors, not empty output. The objects returned by Get-Process have methods, so The objects returned by Get-Process have no methods is false.

3. Final Answer:

   You used the wrong parameter value for -MemberType -> Option D

4. Quick Check:

   Wrong -MemberType value = no output [OK]

Hint: Check exact spelling of -MemberType values [OK]

Common Mistakes:

• Using plural 'Methods' instead of 'Method'
• Forgetting the pipe symbol
• Assuming no methods exist on objects

5. You want to find only the properties of a service object that start with 'Status'. Which command correctly uses Get-Member to filter these properties?

hard

A. Get-Service | Get-Member -MemberType Property | Where-Object Name -like 'Status*'

B. Get-Service | Get-Member -MemberType Property Name 'Status*'

C. Get-Service | Get-Member -MemberType Property | Where-Object { $_.Name -like 'Status*' }

D. Get-Service | Get-Member -MemberType Property -Filter 'Status*'

Solution

1. Step 1: Understand filtering with Get-Member

   Get-Member does not support a -Name or -Filter parameter for partial matches, so filtering must be done after.

2. Step 2: Use Where-Object to filter properties by name

   Get-Service | Get-Member -MemberType Property | Where-Object { $_.Name -like 'Status*' } correctly pipes Get-Member output to Where-Object with a script block filtering names starting with 'Status'.

3. Final Answer:

   Get-Service | Get-Member -MemberType Property | Where-Object { $_.Name -like 'Status*' } -> Option C

4. Quick Check:

   Filter after Get-Member with Where-Object [OK]

Hint: Filter Get-Member output using Where-Object script block [OK]

Common Mistakes:

• Trying to use -Name or -Filter with Get-Member
• Using Where-Object without script block
• Filtering before Get-Member instead of after