Interesting examples, especially in light of the recent debates about Unix shells and PowerShell.

In PowerShell, the `ls` command is a simple command that produces output without flags to control output format, ordering or filtering. Like with higher order functional programming, those tasks are delegated to cmdlets like Format-List, Format-Table, Select-Object, Where-Object.

Some PowerShell examples:

To list the files and directories (children) of a directory:

    ls

To get just the names or the full path:

    ls | select Name
    ls | select FullName

To discover which properties are available from `ls`:

    ls | gm

To select only files larger than 200MB:

    ls | ? Length -gt 200MB

(ls is alias for Get-ChildItem, gm is alias for Get-Member, ? is alias for Where-Object)

It is somewhat ironic that PowerShell is more true to the principle of "do one thing and do it well" than the Unix shells.