Powershell 101
Built-in commands to discover cmdlets and how they work:
Get-Help
Why doesn’t this work? get-service | get-help
Why does this work? gcm get-service | get-help
- update-help
Get-Command
Get-Member
Cmdlets
- Parameters
- Default params
- accept pipeline input
- Tab complete cmdlet names and parameter names Get-EventL [tab] -Lo [tab] App [tab]
- -whatif and -confirm
Measure-object (measure) Sort-Object (sort)
Use any cmd commands. Note also that some cmd command names are aliased to powershell equivalents: cd, dir (as well as unix equivalents: ls, cat). As a result in these instances you can’t use the legacy switches (e.g dir /s you’d need to use dir -recurse or get-childiten -recurse).
verb-noun structure. - This makes commands more discoverable. E.g after you know get-process, you can look up other get-* as well as other *-process with get-help.
Grouped in to modules.
Objects
- Properties
Using the pipeline
- Chaining commands