Chapter 1. Introduction to PowerCLI
Have you ever had to create 200 virtual machines in a short period of time, change a setting on all of your hosts, or make an advanced report for your boss to show how full the hard disks of your virtual machines are? If you have, you know that performing these tasks using the vSphere web client will take a lot of time. This is where automation can make your job easier. VMware PowerCLI is a powerful tool that can perform these tasks and much more. And the best thing is that it is free!
VMware PowerCLI is a command-line interface (CLI) distributed as a collection of Microsoft PowerShell modules and snap-ins. Microsoft PowerShell is Microsoft's command shell and scripting language, designed with the systems administrator in mind. Microsoft PowerShell is available on every Microsoft Windows server or workstation since Windows Server 2008 R2 and Windows 7. VMware PowerCLI is an extension to Microsoft PowerShell. This means that all of the features of PowerShell can be used in PowerCLI. You can use PowerCLI to automate your vSphere hosts, virtual machines, virtual networks, storage, clusters, vCenter Servers, and more.
In this chapter, you will learn:
- Downloading and installing PowerCLI
- Participating in the VMware Customer Improvement Program
- Modifying the PowerShell execution policy
- Creating a PowerShell profile
- Connecting and disconnecting servers
- Using the credential store
- Retrieving a list of all of your virtual machines
- Retrieving a list of all of your hosts
