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Starting this section and the next couple we're gonna start to look at the docker client or Docker Seelye

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inside of our terminal a little bit more and learn about some of the very basic commands so we used

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to interact with docker containers and images now.

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Fair warning here some of these sections are gonna be a little bit boring because we're essentially

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just gonna be typing in commands and looking at the output that comes but I'm going to do my best to

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make sure to share a lot of interesting information with you along the way.

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So let's get to it.

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The first command that we're gonna look at is one that we ran very briefly before.

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It is a command that we're going to use to run or submit to create and run a container using an image.

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So at the command line we're going to execute Docker run and then the name of the image that we want

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to use as the basis for this container.

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Now we've already gone through this process once before at the command line we ran Docker run Hello

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dash world and then we saw that message appear on the screen now using the knowledge that you now have

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about what a docker container really is.

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I want you to think about what probably just occurred when we ran that command.

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Chances are that somewhere on our hard disk is an image that has that file system snapshot with one

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single program inside of it maybe that thing is called I don't know hello world who knows what it's

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really called.

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So when we executed Docker run hello world we took that little snapshot of the hard drive.

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We stuck it into this little container thing or this kind of grouping of resources and then we executed

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the command.

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RON Hello worlds.

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And so the running process up here was Hello worlds that thing ran and then eventually exited.

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So that's what is happening behind the scenes when you execute that command.

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Now there's a lot of variations on this.

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A docker run command and a lot of very small subtleties around it.

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So let's take a quick pause.

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We're gonna come back the next section.

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We're gonna start looking at some of the interesting features around the run command so I'll see you

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in just a minute.