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BeOS included a version of virtual folders referred to as "saved queries", that has since influenced the development of virtual folder features in operating systems like Mac OS X, Windows and Linux. These virtual folders are populated dynamically by executing a search on the entire file system, or a subset of it, or by using the cached version ...
A virtual directory or virtual directory server (VDS) in this context is a software layer that delivers a single access point for identity management applications and service platforms. A virtual directory operates as a high-performance, lightweight abstraction layer that resides between client applications and disparate types of identity-data ...
A virtual file system (VFS) or virtual filesystem switch is an abstract layer on top of a more concrete file system.The purpose of a VFS is to allow client applications to access different types of concrete file systems in a uniform way.
Modern Linux distributions include a /sys directory as a virtual filesystem (sysfs, comparable to /proc, which is a procfs), which stores and allows modification of the devices connected to the system, [20] whereas many traditional Unix-like operating systems use /sys as a symbolic link to the kernel source tree. [21]
This is an accepted version of this page This is the latest accepted revision, reviewed on 8 January 2025. Family of Unix-like operating systems This article is about the family of operating systems. For the kernel, see Linux kernel. For other uses, see Linux (disambiguation). Operating system Linux Tux the penguin, the mascot of Linux Developer Community contributors, Linus Torvalds Written ...
The directory separator is usually a "\", but many operating systems also internally recognize a "/". Physical and virtual drives are named by a drive letter, as opposed to being combined as one. [1] This means that there is no "formal" root directory, but rather that there are independent root directories on each drive.
The file system driver must search a directory for a particular filename and then convert the filename to the correct corresponding inode number. The operating system kernel's in-memory representation of this data is called struct inode in Linux. Systems derived from BSD use the term vnode (the "v" refers to the kernel's virtual file system layer).
In modern systems, a directory can contain a mix of files and subdirectories. A reference to a location in a directory system is called a path. In many operating systems, programs have an associated working directory in which they execute. Typically, file names accessed by the program are assumed to reside within this directory if the file ...