V2EX uid

Uid

释义 Definition

UID 常指“用户标识/用户ID(User ID)”或“唯一标识符(Unique Identifier)”,是在计算机系统、应用或数据库中用来唯一识别某个用户或对象的一串编号或字符串。(在类 Unix 系统里也常特指用户的数字身份编号。)

发音 Pronunciation

/ju a di/

例句 Examples

My UID is required to log in.
登录时需要我的 UID。

In Unix-like systems, the process checks the file’s permissions by comparing the user’s UID with the file owner’s UID.
在类 Unix 系统中,进程会通过比较用户的 UID 和文件所有者的 UID 来检查该文件的权限。

词源 Etymology

UID 是英文缩写,常来源于 User ID / User Identifier(用户身份标识),也常被扩展理解为 Unique Identifier(唯一标识符)。随着操作系统账户体系与数据库、网络服务的发展,这类缩写逐渐成为通用技术术语。

相关词 Related Words

文学与作品 Literary Works

  • The Linux Programming Interface(Michael Kerrisk)大量讨论进程、权限与 UID/GID
  • UNIX and Linux System Administration Handbook(Evi Nemeth 等)用户管理与安全章节频繁出现 UID
  • Advanced Programming in the UNIX Environment(W. Richard Stevens, Stephen A. Rago)在系统调用与权限机制中多次使用 UID
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