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2026-09-20 12:50 #powershell #get-help #cmdlet-discovery #digital-forensics

PowerShell Get-Help Parameter Discovery

Use Get-Help with the -Parameter switch to learn about a specific parameter of a CmdLet.

Get-Help Get-ChildItem -Parameter Filter

This returns a focused description of that parameter, including:
- What it does
- Required/optional status
- Position
- Default value
- Accepted value type
- Pipeline input support

Common help views

Command	What it shows
`Get-Help CmdLetName`	Synopsis and syntax
`Get-Help CmdLetName -Parameter Name`	Single parameter details
`Get-Help CmdLetName -Detailed`	Parameters plus examples
`Get-Help CmdLetName -Full`	Complete help topic
`Get-Help CmdLetName -Examples`	Usage examples only

Key point

The built-in PowerShell help system is updated daily, so it keeps pace with new CmdLets and changes to existing ones. It is the primary tool for discovering what a CmdLet (or one of its parameters) does. Related CmdLet discovery topics include Get-Member CmdLet, Select-Object, PowerShell ForEach-Object CmdLet, and Experimenting with PowerShell.