V2EX virtual file

Virtual File

释义 Definition

虚拟文件:不一定对应磁盘上的真实文件,而是由操作系统或程序“动态生成/映射”的文件对象(常见于伪文件系统如 /proc、内存文件、或通过接口呈现的数据视图)。

发音 Pronunciation (IPA)

/vtul fal/

例句 Examples

A virtual file can show system information without storing it on disk.
虚拟文件可以显示系统信息,而无需把它存到磁盘上。

The application exposes a virtual file interface so plugins can read configuration data as if it were a normal file.
该应用提供虚拟文件接口,使插件能像读取普通文件一样读取配置数据。

词源 Etymology

virtual 源自拉丁语 virtus(力量、能力),在现代英语中引申为“在效果上等同于真实、但不一定物理存在”;file 来自中古法语 fil(线),早期指把纸张“串起来/归档”的概念。合起来 virtual file 强调“像文件一样可读写/可访问,但不必是实体存储文件”。

相关词 Related Words

文学与作品 Literary Works

  • Linux man-pages(如 proc(5)sysfs(5) 等文档常用“virtual file”描述伪文件条目)
  • The Linux Programming Interface(Michael Kerrisk,讨论 /proc 等“virtual files”在系统编程中的用法)
  • Linux Kernel Documentation(内核文档中常以“virtual files”说明通过文件接口暴露的内核信息与控制项)
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