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Elaborated on the permission question. #758

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Elaborated on the permission question. #758

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Elaborated on the question regarding permissions
ekegus Dec 21, 2017
4ef9a15
Corrected some typos in answer to permission question
ekegus Dec 21, 2017
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3 changes: 2 additions & 1 deletion test-yourself-answers.md
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Expand Up @@ -259,7 +259,8 @@ Type `cmd` under Start > Run on Windows, or `Command + Space`, type `terminal` o

#### Why are file permissions important?

prevent unwanted access and/or modification of files. Permissions often are for read, write, execute?
Permissions decide which users have access rights to a file system. Permissions thus work a bit like a lock preventing unwanted users from accessing and/or modifying files.
Unix systems have three different types of permissions: a) The read permission which grants a user the ability to read a file; b) The write permission which grants a user the ability to modify a file; c) the execute permission which grants a user the ability to execute a file.

#### How do you view hidden files in a directory?

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