magine you are in your practice directory. Imagine you have a subdirectory there called permDir. In octal mode, recursively change the permissions on all files and directories under permDir to be the following: user: read, write, and execute group: read, write others: none What command/options would you use to recursively change permissions? What command/options would you use to recursively check to see that you were successful?

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Linux

An operating system (OS) is the software which manages hardware and resources, like CPU, storage and memory. The OS bridges the applications and hardware and makes the connections between all of your software and the hardware resources.