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Introduction

General Information about Linux

General Information

  • The name "Linux" is actually an umbrella term for multiple OS's that are based on UNIX (another operating system).

  • a large selling point of using OSs such as Ubuntu is how lightweight they can be.

  • Some of Linux systems don't have a graphical user interface (GUI). A large part of interacting with these systems is using the "Terminal".

  • A majority of commands allow for arguments to be provided. These arguments are identified by a hyphen and a certain keyword known as flags or switches.

  • --help option can be used to get information about the flags/switches of a specific command.

  • System commands and most application commands have what's called a manual page. Which can be used to learn more about the command. (Can be accessed using man command)

  • Permissions can be so granular in Linux, that whilst a user technically owns a file, if the permissions have been set, then a group of users can also have either the same or a different set of permissions to the exact same file without affecting the file owner itself.

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Last updated 6 months ago

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