Commands / Help and discovery

Get-Help

Read help for a command

beginner Help and discovery Aliases helpman

Get-Help
 Get-Help Get-ChildItem -Full
Works on
WindowsLinuxmacOS
PowerShell
5.1 and later
Reference
Microsoft Learn: Get-Help

What you'll see

NAME
    Get-ChildItem

SYNOPSIS
    Gets the items and child items in one or more specified locations.

SYNTAX
    Get-ChildItem [[-Path] <string[]>] [[-Filter] <string>] [-Include <string[]>]
    [-Exclude <string[]>] [-Recurse] [-Depth <uint>] [-Force] [-Name] ...

(If you only see a short summary, run Update-Help once as administrator.)

The manual. -Examples is the useful switch. -Full is everything. -Online opens the Microsoft page.

Run Update-Help once in an elevated session so local help is not a stub.

Try this

Get-Help Get-ChildItem -Examples

Coming from another shell

ShellWhat you might type
bash / zshman ls
cmd.exehelp dir

More in From bash and From cmd.

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