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In this part, we are going to talk about the filesystem modules that they went and looked at and maybe

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we would do the files, create files, a pen files, create and delete folders and also digital files.

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So first we need therapy letter code and then to import the file system.

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What else we can do this by?

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Taiping Constant is equal to required access and a stand for the final test are module's, and you can

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then do whatever you want, but commercially but commercially, we name it as the more dunam.

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And first we are going to create a new start.

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And inside the trial, we type some test that you want and I just type.

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Welcome to Mobile.

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So the first thing is we are going to do the week follow and to read the file, we are going to type

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after I week file and then we choose the path and we can use the dot and then for look, and since they

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are inside the same folder, we can just.

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Type of text is also OK, so the second argument is the error and they her and then I'm going to check

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if there's error, we are going to a lock error and we are going to console load the data.

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So if we run the program by typing, not if we can we can get the buffer right here.

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You can log to the console.

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And if we want to see the actual string we can use to string method.

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So we type to string and then we run looked at again, it will turn to welcome to a mobile so we can

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try to put inside another folder and then we put the text inside a folder.

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And every one days you can see this error.

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So if we want to with this file, we can type the correct pop by using Smash and then became mobile

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and then they'll start texte.

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And every one days you can see we can see the message again.

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So the next part is if we want to write the file, we can copy and paste here and then we come in this

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code and then instead of using we file method, we are going to use right file.

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And inside here we are going to type the content that we want to write.

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So we type in the message and then we karate's to a new method created.

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So if we try to run the program now, you can see a new message created.

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And if we go to the text file, you can see in new message already authorized.

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Welcome to Mobile.

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So how about if we just want to spend a new message rather than overwrite this?

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So, for example, this is a Panfilo.

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So now we copy and paste here and we command this code and then instead of using right file, we use

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append file and then we type a new message, too.

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And then we run the program.

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And as you can see inside, that has a new message to is created rather than overwrite the whole message.

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But how about if we just want to type the message in a different light and we can do this by doing that

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works out and and then we run the program again and we go to a doctor text.

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You can see a new message to create it in the second night.

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So now if we try to create a new photo, we can copy and paste here and we command and then we use make

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directory.

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And then we typed for the name, for example, the new folder, if no error, a message, new food are

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created will be locked in the console.

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So we run the app and now you can see a new folder is created.

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But if we try to create a folder again and you can see it already exists, so we can check where that

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photo already exists by using its App Store exit thing and new folder will create a directory, but

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we should check if it's not accessed.

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So we should type a exclamation mark who represent if not accessed, it will create a folder and otherwise

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we will lock the folder already exist.

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So if we run the program, you can see the message that already exists.

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But now if we did this folder and then we run the program, you can see it, you can create a folder.

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So now we are going to delete the folder to delete a photo.

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We can duplicate this bunch of code and commands this and we type delete folder.

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So we check if it exists, it will delete the folder.

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So we use remove directory and then we control the lock the folder deleted.

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And if there's no folder here, we will say the folder already deleted.

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So now if we run the program, you can see the folder, the new folder will delete.

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And if we try to run again, you can see the folder already deleted.

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So at last, we want to demonstrate how to date the file.

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So and this is similar to delete folder.

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So we copy and paste here.

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And again, we can manage the previous code and we are going to check if there are no stop text access.

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So we copy this path and pace here.

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So if it exists, we are going to unlink the text file.

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If there's no error, we will say the file is deleted by the.

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Why lies the file already deleted, so we take a look on the next stop and try to run, look at it and

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you can see the note started already deleted.