Translations:Nix (package manager)/14/zh

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为了建构一个连贯的用户或系统环境, Nix将Nix存储库中的条目符号链接到profile. 这些是Nix允许回滚的"前端": 因为存储库是不可变的, 而且以前的profile版本被保留了下来, 回到更早的状态只需要简单地让符号链接指向一个先前的profile. 更精确地说, Nix将二进制文件符号链接到Nix存储库中描述用户环境的条目中. 这些用户环境随之被符号链接到/nix/var/nix/profiles中带有标签的profile, 而这些profile又被符号链接到用户的~/.nix-profile.