文档介绍：Linux File System
文件系统
VFS
VFS的作用
基于VFS的文件访问
VFS重要数据结构
文件系统的注册与安装
ext2、ext3文件系统
文件操作
proc文件系统
CRAMFS文件系统
中英文日报导航站
各种各样的文件系统
Windows FAT16,FAT32, NTFS
传统UNIX: UFS (Unix File System)
BSD文件系统FFS(Fast File System)
Proc File System:只存在于内存中
Linux File System
ext2 ( is first introduced in kernel )
reiserfs ( is first introduced in kernel )
ext3 ( is first introduced in kernel ,default in RedHat now)
xfs (from SGI )
Jfs (from IBM )
嵌入式小型文件系统
CRAMFS
JFFS2
中英文日报导航站
linux文件系统目录布局
ply with FSSTND(File System STaNDard):
/ - first of mount point in linux
/etc - keep linux default configuration
/boot - keep important linux booting files(can be a separate file system)
/bin - mand binaries for both root and ord. users
/sbin - Essential system binaries for administrator
/dev - keep all device files
/usr - keep all user binary and X library
/home - keep user home directory
/proc - is pseudo file system for tracking running process and state of linux system
/var - keeping mail, log file and printer spooling
/lib - contain shared library that is required by system program
/tmp - contain system temporary file
/opt - Add-on application software packages
中英文日报导航站
UNIX文件系统文件类型
Directory --> catalogue of file name
Normal file --> format of data
source file
text file
Symbolic link --> a pointer to another file
Special file --> use for device controller in kernel
Named pipe --> communication channel which can be used by serveral processes(may be irrelevant) in order to exchange data
中英文日报导航站
硬链接(Hard Link)
[******@localhost link]# ls -l
total 1
-rw-r--r-- 1 root root 667 Oct 15 13:39 a
[******@localhost link]# ln a b
[******@localhost link]# ls -l
total 2
-rw-r--r-- 2 root root 667 Oct 15 13:39 a
-rw-r--r-- 2 root root 667 Oct 15 13:39 b
[******@localhost link]# rm a
rm: remove `a'? y
[******@localhost link]# ls -l
total 1
-rw-r--r-- 1 root root 667 Oct 15 13:39 b
inode
/root/link
a
b
中英文日报导航站
符号链接(Symbolic link)
[******@localhost symlink]# ls -l
total 1
-rw-