Chapter II Linux Directory Learning

The Linux directory structure is simpler than Windows, and the Linux directory is a slash/root and the overall structure is a tree-like structure with/roots.

View Level 1 directory structure using TREE-L 1

/bin common binary command directories. such as (Ls,cp,mkdir,cut), and/usr/bin similar

/boot directory Linux kernel and boot system files required by the program directory

/dev Device file directory, such as sound card, disk information, etc...

/etc common system and binary installation package configuration file default path and Server startup command directory

Home directory for normal users

/lib Library File storage Directory

/lost+found in the Ext3 file system, the system crashes unexpectedly or is accidentally critical, resulting in a file fragment directory

/mnt commonly used to temporarily mount a storage device mount directory, such as CdRom, u disk, etc.

/OPT Custom Package installation directory

/proc operating system runtime, process information and kernel information (such as CPU, disk partition, memory information, etc.), stored here. The/proc directory disguises the file system proc mount directory, Proc is not the real file system. His definition can be found in/etc/fstab.

grep proc/etc/fstab

/root the home directory for super-privileged root

/sbin Super System administration commands

/tmp Temp file directory

The directory of the/USR system storage program. such as commands and help files, etc...

/war This directory content is constantly changing. /war/war/log This is the directory that is used to store the system log. The/war/www directory is the directory where the Apache server site is defined, and/war/lib is used to store some library files, such as MySQL, as well as the MySQL database repository.

Important sub-directories to remember

/etc/sysconfig/network-scripts/ifcfg-eth0 Configuring the NIC address and GW

/etc/resolv setting up DNS for local clients

/etc/hosts set the corresponding table for the user IP and domain name, equivalent to the local LAN internal DNS

/etc/sysconfig/network Modify the machine name and network card startup configuration

/etc/fstab record the file system to mount on boot

/etc/inittab set the INIT process to set the system to what kind of runlevel and load related boot file configuration when the system starts

/etc/exports Setting the configuration file path for NFS systems

The/ETC/INIT.D is used to store scripts that the system or server initiates in System V mode, which is common in systems that are started or initialized in the mode v. such as Centos/redhad;

/ETC/XINIT.D if the server is running in xinetd mode, this script will be under the directory of the House.

/etc/profile system Global environment variable configuration path

Chapter II Linux Directory Learning