In this section, we will be discussing the most common types of directories, their benefits and drawbacks. The Misc info filed in the directory contains the miscellaneous information about the owner of the file, the time of its creation, the time at which the file was modified last. Flag field contains the kind of directory entry like value D in Flag field indicates that the file is a directory, value L indicates that the file is a link, value M indicates that the file is a mounted file system. Protection Info field contains the information whether the file can be accessed by the other user in the system or not.
The field File name, contains the name of the concerned file in the directory, Type field indicates the kind or category of the file, Location Info field indicates the location where the file is stored. Let us now study the directory structure with the help of the figure above. A directory always has information about the group of related files. Whenever a user or a process request for a file, the file system search for the file’s entry in the directory and when the match is found, it obtains the file’s location from there. A user must be able to share the files he creates and he must also be able to access the files, created by other users.ĭirectory structure provides both the above-discussed features. A user must have freedom of giving the desired name to the file, without taking into consideration that the same file names are used by other users on the system.Ģ. The two important features that must be taken care while maintaining a directory are given below.ġ. The file entries have information like file name, type, location, the mode in which the file can be accessed by other users in the system. The directory structure organizes these files by keeping entries of all the related files. Content: Directory Structure in OSĪ File system contains thousands and millions of files, owned by several users. So let’s start to explore directory structure.
Here, we will discuss some common schemes defining the directory structure and will also discuss some common maintenance operations that can be performed on directory structure.
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