Linux Directory Structure
Windows: a plurality of ways to organize your files C: \ D: \ E: \
Linux: a single way of organizing files /
/ Directory structure: FHS (Filesystem Hierarchy Standard)
Note: The following figure shows the directory structure Centos7
Bin normal users command / bin / ls, / bin / date
Administrators use the command sbin / sbin / service
dev device file / dev / sda, / dev / sda1, / dev / tty1, / dev / tty2, / dev / pts / 1, / dev / zero, / dev / null, / dev / random
root root user's HOME
ordinary home user's home directory Base
proc virtual file system, reflected in the kernel, or process information in real-time status
[Root @ Tianyun ~] # ps aux | grep sshd
root 1241 0.0 0.0 82468 1400 ? Ss 06:29 0:00 /usr/sbin/sshd
usr file system, the equivalent of C: \ Windows
/ Usr / local software installation directory, equivalent to C: \ Program
Application / usr / bin normal users
/ Usr / sbin application administrators
/ Usr / lib library Glibc 32bit
/ Usr / lib64 library Glibc 64bit
The system boot files stored start the associated, e.g. kernel, grub (boot loader)
etc Profile
The network system-related / etc / sysconfig / network / etc / hostname
Application configuration files such as / etc / ssh / sshd_config ...
lib library Glibc
lib64 library Glibc
tmp Temporary files (writable: Process generated temporary files)
var is stored in a file some changes, such as databases, logs, e-mail ...
mysql: /var/lib/mysql
vsftpd: / var / ftp
mail: /var/spool/mail
cron: / var / spool / cron
log: / var / log
Temporary Files: / var / tmp (temporary files produced by the process)
Equipment (mainly refers to the storage device) mount directory
The default media mobile device mount point
mnt manually mount the device mount point
misc automount mount process
net automount mount process
Command storage location:
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/ Dev device file directory (block and character devices)
/ Usr application directory
/ Var log file service (server data directory)
/ Etc directory profile
/ Home general user's home directory
/ Root directory home administrator
/ Boot system startup directory (the kernel boot program startup files)
/ Proc pseudo file system (hardware information, kernel parameters, process information in memory)
/ Sys pseudo file system (hardware information, kernel parameters, process information in memory)
/ Mnt other mount point
/ Opt third-party software (flush, splunk, open office)
/ Media media catalog (CD-ROM disk u)
/ Cgroup resource control directory (memory cpu ...)
/ Selinux selinux directory security components used
/ Misc and / net autofs service using the directory
/ Srv directory server data
/ Tmp temporary files directory