Linux Basics-1

1.Linux can be seen as being composed of four departments: kernel, user interface, file structure, tools

2.Linux terminal can be divided into four categories: Serial terminal, physical terminal, virtual terminal, graphic terminal

To view the currently logged-on endpoint using the TTY command

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Who command to view the currently logged on user and the TTY number occupied

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3. If garbled in the viewing system, you can use export lang=us_en to resolve

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4. The concept of relative paths and absolute paths:

Relative path: The relative path is a. Or.. A. Represents the location of the user's current operation, while the. Represents the parent directory; In the path, the. Represents the directory in which the user is currently located, while the. Parent directory, to put. and. Look at it as a catalog.

Absolute path: The absolute path begins with/(also known as the root directory), such as/usr,/etc/x11. If a path is from/to start, it must be an absolute path.