精通PowerShell：Windows管理脚本指南

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"Mastering PowerShell" 是一本全面介绍和教授Windows PowerShell的书籍，旨在帮助读者深入理解和熟练运用这一强大的命令行工具。在Windows PowerShell中，用户可以执行一系列高级任务，包括自动化日常管理任务、管理操作系统、网络服务以及微软的其他应用程序，如SQL Server。PowerShell的核心是其基于对象的命令行界面和脚本语言，它扩展了传统的命令提示符功能，提供了更丰富的交互性和灵活性。这本书可能涵盖了以下几个关键知识点： 1. **PowerShell基础知识**：书中会介绍PowerShell的基础概念，包括PowerShell的工作环境、命令行语法（Cmdlets）、管道（Pipeline）机制以及如何通过PowerShell进行文件操作。 2. **PowerShell脚本编程**：学习编写PowerShell脚本，包括变量、数据类型、控制结构（如if语句和for循环）、函数以及错误处理。 3. **PowerShell模块和提供程序**：了解如何使用和创建模块来组织和重用代码，以及如何利用PowerShell提供程序访问系统不同部分，如注册表、文件系统和Active Directory。 4. **PowerShell远程管理**：通过PowerShell Remoting，可以远程管理多台计算机，实现跨网络的自动化任务。 5. **PowerShell与.NET框架的集成**：学习如何直接利用.NET类库来增强PowerShell脚本的功能。 6. **高级话题**：可能包括PowerShell工作流、性能优化、调试技巧以及安全方面的考虑，如权限管理和脚本签名。 7. **案例研究和实战示例**：书中会提供实际场景中的例子，帮助读者理解如何在实际工作中应用PowerShell，解决具体问题。 8. **作者Tobias Weltner**：作为一位知名的PowerShell MVP，他有着丰富的经验和深厚的洞察力，他的著作通常会包含实用的建议和深入的技术解析。此外，书中可能还包含对最新版本的PowerShell更新和改进的讨论，以及如何与微软的其他产品和服务（如Azure）集成的内容。对于任何希望提升Windows管理效率和自动化能力的IT专业人员来说，这是一本不可多得的参考书。

Figure 1.6: Specifying new fonts and font sizes

You should also try experimenting with TrueType fonts by using the "bold fonts" option. TrueType

fonts are often more readable if they're displayed in bold.

Your choice of fonts may at first seem a bit limited. To get more

font choices, you can add them to the console font list. The limited

default font list is supposed to prevent you from choosing

unsuitable fonts for your console.

One reason for this is that the console always uses the same width for each

character (fixed width fonts). This restricts the use of most Windows fonts

because they're proportional typefaces: every character has its own width.

For example, an "" is narrower than an "m". If you're sure that a certain font

will work in the console, then here's how to add the font to the console font

list.

Open your registry editor. In the key

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\

CurrentVersion\Console\TrueTypeFont insert a new "string value" and give

this entry the name "00" (numbers, not letters).

If there's already an entry that has this name, then call the new entry "000"

or add as many zeroes as required to avoid conflicts with existing entries.

You should then double-click your new entry to open it and enter the name of

the font. The name must be exactly the same as the official font name, just

the way it's stated under the key

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows

NT\CurrentVersion\Fonts.

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Saving Changes

Once you've successfully specified all your settings in the dialog box, you can close the dialog box. If

you're using Windows Vista, all changes will be saved immediately, and when you start PowerShell

the next time, your new settings will already be in effect. You may need Admin rights to save

settings if you launched PowerShell with a link in your start menu that applies for all users.

If you're using Windows XP, you'll see an additional window and a message asking you whether you

want to save changes temporarily (Apply properties to current window only) or permanently (Modify

shortcut that started this window).

Piping and Routing

You may want to view the information page by page or save it in a file since some commands output

a lot of information.

Piping: Outputting Information Page by Page

The pipe command more outputs information screen page by screen page. You will need to press a

button (like Space) to continue to the next page.

Piping uses the vertical bar (|). The results of the command to the left of the pipe symbol are then

fed into the command on the right side of the pipe symbol. This kind of piping is also known in

PowerShell as the "pipeline":

Get-Process | more (Enter)

You can press (Ctrl)+(C) to stop output. Piping also works with other commands, not just more. For

example, if you'd like to get a sorted directory listing, pipe the result to Sort-Object and specify the

columns you would like to sort:

dir | Sort-Object -property Length, Name (Enter)

You'll find more background information on piping as well as many useful examples in Chapter 5.

Redirecting: Storing Information in Files

If you'd like to redirect the result of a command to a file, you can use the redirection symbol ">":

Help > help.txt (Enter)

The information won't appear in the console but will instead be redirected to the specified file. You

can then open the file.

However, opening a file in PowerShell is different from opening a file in the classic console:

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