[Reprint] each directory under linux meaning

The meaning of the directory under linux

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/ bin 
/ usr / local / bin 
/ usr / bin 

three directories are not the same, but still very fond of speaking discovery unix software installed in the / opt directory below.

A path name
/ bin to get those commands minimum operational systems required for
/ boot the kernel and load the required kernel file
/ dev terminals, disks and other equipment items
/ etc critical boot files and configuration files
/ lib c compiler libraries and some c compiler
/ opt optional, additional application software packages
/ proc map of all running processes of
the home directory / root super-user
/ sbin guide, repair or restore the system of command
/ tmp each restart to disappear temporary files
/ usr Secondary hierarchy of files and command
/ usr / bin and most of the commands executable file
/ usr / header files include c program
/ usr / lib library: support for standard procedures used by the file
/ usr / local local software (user software installed)
/ usr / local / bin native executables
/ usr / local / etc local system configuration files and command
/ usr / local / lib native support for file
/ usr / local / sbin statically linked local system maintenance command
/ usr / local / src / usr / local / * source code
/ usr / sbin less critical systems management and restoration command
/ usr / share many things in common system (read only)
/ usr / share / man online user Manual
/ usr / src (non-local) package source code
/ workspace usr / src / linux kernel configuration, the configuration file
/ var system-specific configuration files and data
/ var / adm different things: logging, setting the recording system, information management odd
/ var / log various system log files
/ var / spool for printer spool directory using the mail
/ var / tmp more temporary space (after the restart, file be retained)

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