This chapter dealt with practices that are specific to PowerShell. Filter left and format right are important principles to keep in mind in order to keep pipelines efficient and avoid losing properties that are needed. Comment-based help and the various Write-* cmdlets are crucial parts of the PowerShell environment that allow users to discover details about cmdlets and parameters and understand the operation of code.
The next chapter will introduce topics that, while common in development groups, might not be firmly established in the system administration groups. These programming professionalism topics include using naming standards, modularization, and unit testing.