Linux File System

File system: structure of storage that organize data into files and directory. The file live in the directory which are often nested with other directory Root Directory: The root of the entire system directory tree. represented by a single forward slash / Paths: set of file and directory. used to locate a specific file or program example: /home/downloads/flag.txt

PATH TYPES

Absolute path: The path which trace the location of file which start from root directory until the location of the file example: /home/downloads/flag.txt Relative path: The path that do not start with forward slash or the root. Its start form your working directory. ./ (Dot file): This symbol represented current directory using cd ./ doesn’t move you into other directory ../(Dot Dot file): Represented your parent directory, which move you up into one level above in the system file tree.

Important Commands: ls: list rm: remove cd: change directory mv: move pwd: print working directory

FILE GLOBING

There are several ways to write file location with out typing all you can use * use this to select all ? use this to change one char like fill the blink [] use this to make show file that contain some letters [^] use this to exclude some letters