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Hello and welcome to this lecture in this lecture.

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I will introduce you to three ways of interacting with Ruby the three ways of interacting with Ruby

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or require the use of the command line utilities.

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If you are on a Windows machine the command line is usually the command prompt.

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If you are on a Mac This will be the terminal.

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The first way you can interact with Ruby is Vi a single command.

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The second is Vi a ruby file.

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Basically this is a ruby far that has Ruby code.

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See it will be done.

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Ah.

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The file extension the third way you can interact with Ruby is true.

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The interactive Shell also referred to as I R B.

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We stand for interactive Ruby shell.

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I'm going to be explaining each of these in separate lectures briefly.

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Thanks for watching.

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Bye for now.