1. The solaris directory is an inode node that stores the name and inode number tables of files in the directory.
2. device Files (files in/dev). When ls-l is used, you can see the properties in 136, 8 format, indicating the maximum device number 8,136, and the minimum unit is indicating the device drive, 8 represents the unit, that is, multiple slice magnetic columns ).
3. Block devices and character devices. Character devices use data streams to read and write data. Block devices use device a-Cache-Device B and can read data randomly. Character devices are also known as bare devices.
4. Use devfsadm to add and identify new devices. Automatically create files under/dev, corresponding to the specified slice or device
5. The Symbolic Link, also known as soft link, is the path of the linked file added to the data block of the linked file. The hard link is to directly link inode in the data block.
6. In inode of each file, save the number of links
7. ls-li: view the inode file of the link. Find-inum file to check which files are linked to the file. Hard connection cannot span the File System