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Now, let's look at working with arrays and splitting and

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joining them. So I'm going to create a string.

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Okay, and just Roy Biv. I can split that string into an array.

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All strings have a split method, and this will split on whatever

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whitespace is in the string, and then I get an array.

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In this case, I get the first name and last name in the array.

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However, you could also create a string like this where I've got

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"This.Is.A.String" separated by periods. I can split this as

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well. In this case, I want to specify, and this is the delimiter

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that I'm splitting on.

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There are some other kind of fun things that you can do with this split method.

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Create another string here. However, I don't want to split on all of the spaces.

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I'm going to split on a space, but I only want three elements to the array.

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So once PowerShell gets to the third element or last

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element, then it will stop splitting.

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So I get PowerShell, split, 7, split, and then that's a

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count of 3, and so it doesn't split anymore.

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However,

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that split method is kind of limited because you can only split on a single

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delimiter. There's an advanced way to do this with a split operator. So I'm

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going to create a string, and this could be the type of string that you might

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get from a log file of something or some process that runs and creates a text

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file, and you want to parse the data.

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So I've got some data string that is separated by numbers, 44, 88, and 435.

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And I want to pull that data out using those delimiters. Here's how

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I'm going to do that. I'm going to split $r using the split

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operator, and I'm going to use a regular expression pattern. Again,

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and this is a little advanced.

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We haven't talked about regular expressions.

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If you understand regular expressions, then this will make sense to

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you, but I'm basically telling PowerShell split on a space at least

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two digits and then another space.

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So what's in $d? I've got four items, and there they are.

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So I've got Data foo bar, that first element, then I have a number, or my

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delimiter of the space, number, space, and then Field1, and so on.

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So that's how I was able to split that string using the split

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operator and that regular expression pattern.

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If you have things that are a little more complicated,

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this is what you're going to need to do.

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But that first element, $d[0], could also be treated as an array.

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I can split that as well and get those values individually if I needed to.

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There's an about topic, again,

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you should take a look at. You kind of getting the feeling

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I'm urging you to read the help, and there's lots of help

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there for you to read? Sure enough.

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Alright, so now we need to join things together.

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So I'm creating an array, 2, 4, 6, 8, and you can see the values in there.

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There is a join operator, ‑join, and then you specify the variable.

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Get a result of 2, 4, 6, 8. This looks a little weird, and it's kind

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of one of the few operators where you do the operator first and then

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the thing that you are working on.

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So I'm telling PowerShell, take the array, $r, and join the elements together.

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By default, it doesn't include any spaces or delimiters.

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You can, however, specify using this syntax,

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put the variable first,

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then the operator, and then the delimiter that you want to use

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such as a space, or maybe you want a dash, whichever you need.