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Hello everyone, and welcome back.

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This is the last module in our course on learning about the PowerShell language.

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In this module, I want to talk about strings, dates, and numbers.

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In other words,

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I want to show you ways that you can work with some very common

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object types to maybe go a little further than what you normally can

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do or think you can do with PowerShell.

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So when we work with PowerShell, we work with command lists and functions,

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and this includes scripts and functions that you might write; however,

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these commands don't do everything,

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they can't handle every situation or provide every piece of

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coverage that you might need in order to do your job.

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For example, you may have some particular needs where you need to format,

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manipulate, or in some other way process some piece of data.

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It could be objects that you get from running a command,

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say searching a SQL Server, or a SharePoint site,

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or processing a log file, or processing 1000 log files.

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Cmdlets will get you part of the way,

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but you may need additional steps to get everything

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done that you need to accomplish.

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In other words, you may need to fill in some gaps.

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The cmdlet will get you so far, but you need to do a little bit more.

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Hey, how do I do that?

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Well, that's why I want to show you,

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or at least get you started thinking the right way,

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so that you can figure out how to fill in these gaps.

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The other reason that we're looking at this information in this module

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is you may want to polish up a PowerShell expression,

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again,

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the cmdlet or PowerShell expression that you have built may give

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you most of the information that you want,

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but maybe it's not quite in the format that you need,

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or you need another additional piece of information

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that isn't part of the command, but you can provide it.

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So these are things that we can do with PowerShell,

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and to be honest with you,

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these are the things that I find very exciting about PowerShell

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because I have mastered the PowerShell language.

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Once you get some more experience with the PowerShell language,

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you will be able to do these things as well.

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Very often the things that we want to manipulate,

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or polish up, or work with further are things like dates,

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or strings, or numbers.

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These are types of objects that don't necessarily

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have a built‑in library of commands, but there are ways that you can work with,

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or manipulate, or whatever you need to do,

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and I'm going to show you how we can do that when we get to the demonstration.

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Remember, all of these things are objects,

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dates, numbers, strings, so you can use Get‑Member to discover methods,

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and properties, and things that you can use with those object types.

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I'm going to encourage you to leverage the dotted notation.

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Again, we're going to be working with objects,

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objects have properties, that property may be a nested

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array or in another nested object.

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Remember, you can use that dotted notation and continue it on for

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as long as you need. I'll show you some of this in the

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demonstrations. And of course you want to take advantage of

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PowerShell's operators that we looked at earlier in this course.

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You want to maybe compare, and say hey,

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does this string match this particular pattern, is this

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number greater or equal to that number? So learn how to leverage the PowerShell operators.