全局关闭 macOS 自动纠错与自动大写

01命令

$ defaults write NSGlobalDomain NSAutomaticSpellingCorrectionEnabled -bool false && defaults write NSGlobalDomain NSAutomaticCapitalizationEnabled -bool false && defaults write NSGlobalDomain NSAutomaticPeriodSubstitutionEnabled -bool false

02作用说明

这些 NSAutomatic* 键对应系统设置 > 键盘 > 文本输入里的开关；写入全局域相当于给所有遵循该设置的应用改默认值，包括那些根本找不到单独开关的应用。应用在启动时读取该值，所以修改后要重启相关应用。对开发者尤其实用——代码、URL 和中英混排文本不会再被“自动纠正”得面目全非。

03风险

04撤销

$ defaults write NSGlobalDomain NSAutomaticSpellingCorrectionEnabled -bool true && defaults write NSGlobalDomain NSAutomaticCapitalizationEnabled -bool true && defaults write NSGlobalDomain NSAutomaticPeriodSubstitutionEnabled -bool true

05来源

• macOS defaults - read, write and delete macOS user defaults
  SS64 · technical · 2026-09-17
  依据: Documents `defaults write NSGlobalDomain key -bool value` for boolean global preference keys, the mechanism used by apps that read NSAutomatic* flags.
• macOS setup dotfiles (.macos)
  mathiasbynens/dotfiles (GitHub) · community · 2026-09-17
  依据: Contains 'defaults write NSGlobalDomain NSAutomaticSpellingCorrectionEnabled -bool false' and adjacent NSAutomaticCapitalizationEnabled / NSAutomaticPeriodSubstitutionEnabled / NSAutomaticDashSubstitutionEnabled lines to disable smart text features globally.

最后验证: 2026-09-19 · 分类: 系统与设置

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