Windows PowerShell 3.0 Step by Step - Cdn.oreilly.com - O'Reilly

Once the UpdateHelpTrackErrors script runs, a progress bar displays indicating the progress as the
updatable help files update. Once the script completes, any errors appear in order. The script and
associated errors appear in Figure 1-2.
FIGURE 1-2 Cleaner error output from updatable help generated by the UpdateHelpTrackErrors script.
You can also determine which modules receive updated help by running the Update-Help cmdlet
with the -verbose parameter. Unfortunately, when you do this, the output scrolls by so fast that it is
hard to see what has actually updated. To solve this problem, redirect the verbose output to a text
file. In the command that follows, all modules attempt to update help. The verbose messages redirect
to a text file named updatedhelp.txt in a folder named fso off the root.
Update-Help -module * -force -verbose 4>>c:\fso\updatedhelp.txt
Windows PowerShell has a high level of discoverability; that is, to learn how to use PowerShell, you
can simply use PowerShell. Online help serves an important role in assisting in this discoverability.
The help system in Windows PowerShell can be entered by several methods. To learn about using
Windows PowerShell, use the Get-Help cmdlet as follows:
Get-Help Get-Help
This command prints out help about the Get-Help cmdlet. The output from this cmdlet is illustrated
here:
CHAPTER 1 Overview of Windows PowerShell 3.0 15