(1)/bin: This directory is used to store user commands. Some user commands are also stored in the directory/usr/bin.
(2)/sbin: This directory is used to store many system commands, such as shutdown. Many system commands are also included in the directory/usr/bin.
(3)/root: This directory is used to host the root user (Superuser) home directory.
(4)/mnt: This directory is mainly used to hold the mount point of the file system mounted after booting the system.
(5)/boot: This directory is used to store the kernel and other files used by the system startup.
(6)/lost+found: This directory is used by fsck to store fragmented files (files with no names).
(7)/lib: This directory is used to store library files used by programs in/bin and/sbin. The directory/usr/bin contains more library files.
(8)/dev: This directory is used to store device files.
(9)/etc: This directory is used to store many configuration files and directories.
(Ten)/var: this directory is used to store files that are constantly expanding and changing in the system, such as log files and locked files.
(one)/usr: This directory is used to store files and directories that are directly related to the users of the system.
/proc: This directory is a virtual file system (not actually stored on disk), which includes system information that is used by some programs.
/INITRD: This directory is used to store the directory where the initrd.img image files are mounted when the computer starts up and to load the required device modules.
/tmp: This directory is used to hold temporary files generated or saved by the user program when it is run. /TMP has global read and write rights.
()/home: This directory is used for the location of the user master directory.
Introduce the Linux file system