linux文件树

以前有意找这方面的资料，今天突然发现在系统中就有 linux系统用man hier solaris用man  filesystem 其结果如下        /      This is the root directory.  This is where the whole tree starts.        /bin   This directory contains executable programs which are needed in sin-               gle user mode and to bring the system up or repair it.        /boot  Contains static files for the  boot  loader.   This  directory  only               holds  the  files which are needed during the boot process.  The map               installer and configuration files should go to /sbin and /etc.        /dev   Special or device files,  which  refer  to  physical  devices.   See               mknod(1).        /dos   If  both MS-DOS and Linux are run on one computer, this is a typical               place to mount a DOS file system.        /etc   Contains configuration files which are local to the  machine.   Some               larger  software  packages, like X11, can have their own subdirecto-               ries below /etc.  Site-wide configuration files may be  placed  here               or in /usr/etc.  Nevertheless, programs should always look for these               files in /etc and you may have links for these files to /usr/etc.        /etc/opt               Host-specific configuration files for add-on applications  installed               in /opt.        /etc/sgml               This  directory  contains  the  configuration files for SGML and XML               (optional).        /etc/skel               When a new user account is created, files from  this  directory  are               usually copied into the user’s home directory.        /etc/X11               Configuration files for the X11 window system (optional).        /home  On  machines  with  home  directories  for  users, these are usually               beneath this directory, directly or  not.   The  structure  of  this               directory depends on local administration decisions.        /lib   This directory should hold those shared libraries that are necessary               to boot the system and to run the commands in the root filesystem.        /mnt   This  directory  contains  mount  points  for  temporarily   mounted               filesystems        /opt   This  directory  should  contain add-on packages that contain static               files.        /proc  This is a mount point for the proc filesystem, which provides infor-               mation  about  running  processes  and the kernel.  This pseudo-file               system is described in more detail in proc(5).        /root  This directory is usually the  home  directory  for  the  root  user               (optional).        /sbin  Like  /bin, this directory holds commands needed to boot the system,               but which are usually not executed by normal users.        /tmp   This directory contains temporary files which may be deleted with no               notice, such as by a regular job or at system boot up.        /usr   This  directory  is  usually  mounted from a separate partition.  It               should hold only sharable, read-only data, so that it can be mounted               by various machines running Linux.        /usr/X11R6               The X-Window system, version 11 release 6 (optional).        /usr/X11R6/bin               Binaries  which  belong  to  the X-Windows system; often, there is a               symbolic link from the more traditional /usr/bin/X11 to here.        /usr/X11R6/lib               Data files associated with the X-Windows system.        /usr/X11R6/lib/X11               These contain miscellaneous files needed to run X;  Often, there  is               a symbolic link from /usr/lib/X11 to this directory.        /usr/X11R6/include/X11               Contains  include  files needed for compiling programs using the X11               window   system.    Often,   there   is   a   symbolic   link   from               /usr/include/X11 to this directory.        /usr/bin               This  is  the  primary directory for executable programs.  Most pro-               grams executed by normal users which are not needed for  booting  or               for  repairing the system and which are not installed locally should               be placed in this directory.        /usr/bin/X11               is the traditional place to look for X11 executables; on  Linux,  it               usually is a symbolic link to /usr/X11R6/bin.        /usr/dict               Replaced by /usr/share/dict.        /usr/doc               Replaced by /usr/share/doc.        /usr/etc               Site-wide  configuration files to be shared between several machines               may be stored in this directory.  However,  commands  should  always               reference those files using the /etc directory.  Links from files in               /etc should point to the appropriate files in /usr/etc.        /usr/games               Binaries for games and educational programs (optional).        /usr/include               Include files for the C compiler.        /usr/include/X11               Include files for the C compiler and the X-Windows system.  This  is               usually a symbolic link to /usr/X11R6/include/X11.        /usr/include/asm               Include  files which declare some assembler functions.  This used to               be a symbolic link to /usr/src/linux/include/asm.        /usr/include/linux               This contains information which may change from  system  release  to               system    release    and   used   to   be   a   symbolic   link   to               /usr/src/linux/include/linux to get  at  operating  system  specific               information.               (Note  that  one should have include files there that work correctly               with the current libc and  in  user  space.  However,  Linux  kernel               source  is  not  designed to be used with user programs and does not               know anything about the libc you are using. It is very  likely  that               things will break if you let /usr/include/asm and /usr/include/linux               point at a random kernel tree. Debian systems don’t do this and  use               headers  from a known good kernel version, provided in the libc*-dev               package.)        /usr/include/g++               Include files to use with the GNU C++ compiler.        /usr/lib               Object libraries, including dynamic libraries, plus some executables               which  usually  are not invoked directly.  More complicated programs               may have whole subdirectories there.        /usr/lib/X11               The usual place for data files associated with X programs, and  con-               figuration files for the X system itself.  On Linux, it usually is a               symbolic link to /usr/X11R6/lib/X11.        /usr/lib/gcc-lib               contains executables and include  files  for  the  GNU  C  compiler,               gcc(1).        /usr/lib/groff               Files for the GNU groff document formatting system.        /usr/lib/uucp               Files for uucp(1).        /usr/local               This is where programs which are local to the site typically go.        /usr/local/bin               Binaries for programs local to the site.        /usr/local/doc               Local documentation.        /usr/local/etc               Configuration files associated with locally installed programs.        /usr/local/games               Binaries for locally installed games.        /usr/local/lib               Files associated with locally installed programs.        /usr/local/include               Header files for the local C compiler.        /usr/local/info               Info pages associated with locally installed programs.        /usr/local/man               Man pages associated with locally installed programs.        /usr/local/sbin               Locally installed programs for system administration.        /usr/local/share               Local  application data that can be shared among different architec-               tures of the same OS.        /usr/local/src               Source code for locally installed software.        /usr/man               Replaced by /usr/share/man.        /usr/sbin               This directory contains program binaries for  system  administration               which  are not essential for the boot process, for mounting /usr, or               for system repair.        /usr/share               This directory contains  subdirectories  with  specific  application               data,  that  can be shared among different architectures of the same               OS.  Often one finds stuff here that used to  live  in  /usr/doc  or               /usr/lib or /usr/man.        /usr/share/dict               Contains the word lists used by spell checkers.        /usr/share/doc               Documentation about installed programs.        /usr/share/games               Static data files for games in /usr/games.        /usr/share/info               Info pages go here.        /usr/share/locale               Locale information goes here.        /usr/share/man               Manual  pages  go  here  in subdirectories according to the man page               sections.        /usr/share/man/<locale>/man[1-9]               These directories contain manual pages for the  specific  locale  in               source  code  form. Systems which use a unique language and code set               for all manual pages may omit the <locale> substring.        /usr/share/misc               Miscellaneous data that can be shared among different  architectures               of the same OS.        /usr/share/nls               The message catalogs for native language support go here.        /usr/share/sgml               Files for SGML and XML.        /usr/share/terminfo               The database for terminfo.        /usr/share/tmac               Troff macros that are not distributed with groff.        /usr/share/zoneinfo               Files for timezone information.        /usr/src               Source  files  for different parts of the system, included with some               packages for reference purposes.  Don’t  work  here  with  your  own               projects,  as  files  below  /usr  should  be  read-only except when               installing software.        /usr/src/linux               This was the traditional place for the kernel source.  Some  distri-               butions  put  here the source for the default kernel they ship.  You               should probably use another directory when building your own kernel.        /usr/tmp               Obsolete.  This  should be a link to /var/tmp.  This link is present               only for compatibility reasons and shouldn’t be used.        /var   This directory contains files which may  change  in  size,  such  as               spool and log files.        /var/adm               This  directory  is  superseded by /var/log and should be a symbolic               link to /var/log.        /var/backups               Reserved for historical reasons.        /var/cache               Data cached for programs.        /var/catman/cat[1-9] or /var/cache/man/cat[1-9]               These directories contain preformatted  manual  pages  according  to               their  man  page  section.  (The use of preformatted manual pages is               deprecated.)        /var/cron               Reserved for historical reasons.        /var/lib               Variable state information for programs.        /var/local               Variable data for /usr/local.        /var/lock               Lock files are placed in this directory.  The naming convention  for               device  lock  files  is LCK..<device> where <device> is the device’s               name in the filesystem.  The format used is that of  HDU  UUCP  lock               files, i.e. lock files contain a PID as a 10-byte ASCII decimal num-               ber, followed by a newline character.        /var/log               Miscellaneous log files.        /var/opt               Variable data for /opt.        /var/mail               Users’ mailboxes. Replaces /var/spool/mail.        /var/msgs               Reserved for historical reasons.        /var/preserve               Reserved for historical reasons.        /var/run               Run-time variable files,  like  files  holding  process  identifiers               (PIDs)  and logged user information (utmp).  Files in this directory               are usually cleared when the system boots.        /var/spool               Spooled (or queued) files for various programs.        /var/spool/at               Spooled jobs for at(1).        /var/spool/cron               Spooled jobs for cron(1).        /var/spool/lpd               Spooled files for printing.        /var/spool/mail               Replaced by /var/mail.        /var/spool/mqueue               Queued outgoing mail.        /var/spool/news               Spool directory for news.        /var/spool/rwho               Spooled files for rwhod(8).        /var/spool/smail               Spooled files for the smail(1) mail delivery program.        /var/spool/uucp               Spooled files for uucp(1).        /var/tmp               Like /tmp, this  directory  holds  temporary  files  stored  for  an               unspecified duration.        /var/yp               Database files for NIS.