![]() These parameters can be specified either by the -InputObject and -Process parameter names, or by piping the object to the ForEach-Object cmdlet and placing the script block as the first parameter. At its most simple, ForEach-Object requires only an object to be looped through and a script block containing the commands to be performed on each member of the object. In many cases using the ForEach-Object cmdlet is the best way to loop through an object. At times, determining the most efficient loop type is required, either from a performance or code readability perspective. There are several types of loops available in PowerShell, and in many cases, more than one loop technique can be used effectively. PowerShell in particular features a number of cmdlets – notably those that begin with the verb Get – that return objects containing large numbers of similar data. Ideal for performing consistent actions for a set period of time or a certain number of records, loops can simplify your scripts in a big way. ![]() PowerShell loops, at their most basic, simply repeat the same set of commands a set number of times. Need to know exactly which verbs are accepted? Try using “Get-Verb” for a list of acceptable syntaxes. The program was such a success during the three-year implementation at Windows that as of Windows 7, PowerShell became the default install on all Windows platforms. To solve this, he created a document outlining his plans for a program that could keep up with and possibly succeed the old command lines thus, PowerShell was born. In 2002, Jeffrey Snover, working for Microsoft at the time, knew that the command-line interface for Windows was not as capable as Linux, Microsoft’s competitor. It has two primary functions: a command-line shell that is similar to the windows command prompt (known as “cmd.exe”) and a robust scripting language that can be molded to automate practically anything and everything one might need. PowerShell was originally designed with “easy to understand” in mind. PowerShell is an open-source scripting language that helps tech pros who may not necessarily be familiar with software programming to design efficient scripts and tools to assist in their daily work tasks. ![]() In this PowerShell tutorial, we will show you how to use the For loop, ForEach-Object loop, and the While, Do-While and Do-Until loops. Loops are essential in being able to automate mundane tasks that take up too much of your valuable time. One of the more difficult tasks of attempting automation is writing loops for your scripts. Being able to automate both simple and complex scripts is an invaluable asset to businesses, daily tasks and even recreational use. PowerShell is a great tool to use for programmers and nonprogrammers alike. ![]()
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