Linus under each catalogue

/boot bootloader files

Placing system boot-related files

Columns such as: Vmlinux-xxx's kernel, master bootstrapper grub,initrd

/lib System Library

Contains library files that support binaries located under/bin and/sbin/

The library file is named ld* or lib*.so.*

Columns such as: ld-2.12.2.so,libgcc.so.5.6

/etc: Configuration file

Contains the required configuration files for all Programs

It also contains startup and shutdown shell scripts for starting/stopping a single program. For example:/etc/resolv.conf,/etc/hosts,/etc/host.conf,/etc/passwd

/var variable file

var represents a variable file.

This directory contains files that can grow in content

Columns such as: System log file (/var/log), database file (/var/lib), e-mail (/var/mail), print queue (/var/spool), lock file (/var/lock), multiple restarts of required temporary files (/var/tmp);

/SRV Service Data

SRV Representative services

Contains data related to server-specific services

/PROC: Process Information

The Linux kernel provides a mechanism for proc file systems to access kernel internal data structures at run time, and to alter kernel setup mechanisms. The proc file system is a virtual file system that only exists in memory and does not occupy external memory space. It provides an interface for accessing system kernel data in a file system manner.

Contains information about the process that is running. Columns such as:/proc/{pid} directory containing information related to specific PID

system resources exist as textual information.

Gca

/proc/devices devices that have been loaded and sorted

/proc/modules List of all modules loaded into the kernel

/proc/driver Driver Information

/proc/cpuinfo CPU Device Information

/proc/stat All CPU activity information

/proc/meminfo Memory Device Information

/proc/net Network card Device information

/proc/diskstats Obtaining disk information

/proc/mdstat multi-drive, RAID configuration information

/proc/ide IDE Device Information

/PROC/SCSI SCSI Device Information

/PROC/FS File System Information

File system types currently supported by the/proc/filesystems kernel

/proc/tty TTY Device Information

/sys

The/sys directory and/proc store the same information, but/sys is able to change the information, and/proc can not change the information

/bin: User binary files

Storing binary executables, in single-user mode, the common Linux commands you need to use are located in this directory, and the commands used by all users of the system are set here. For example: PS, ls, ping, grep, CP

/sbin: Binary system binaries

The same is the binary executable file, and/bin, the difference is that the Linux command in this directory is a system administrator, maintenance use. For example: Iptables, reboot, Fdisk, ifconfig, swapon commands

/USR software program

USR is the abbreviation for UNIX System resource, which contains the source code for binaries, library files, documents, and level two programs.

/dev: Device files

Special files for storing devices, including terminal equipment, USB or any device connected to the system. Columns such as:/dev/tty1,/dev/usbmon0

/MNT Mount Directory

System administrators can temporarily mount file systems

/media removable media devices

Used to temporarily mount removable media devices

Columns such as: Mount the CD-ROM/media/cdrom, mount the floppy disk drive/media/floppy;

/tmp temp file

Contains the system and user-created temporary files, and when the system restarts, the files in this directory will be deleted

/lost+fount

The system does not shut down properly, and some homeless files are placed in the directory. A hard drive is mounted to the/disk, and the directory will generate the/disk/lost+found directory

Linus under each catalogue