But when we show hidden files, we can see another "hosts" file. It is hidden, as in the following example.

但当我们显示出隐藏文件时，却看到了另外一个“hosts”文件。

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Bash keeps a record of what the user has typed exactly and writes it to a hidden file called.bash_history within the user's home directory.

bash会准确地记录用户输入的命令，并把记录写到用户主目录中的隐藏文件. bash_history中。

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When a client creates an HDFS file, it computes a checksum of each block of the file and stores these checksums in a separate hidden file in the same HDFS namespace.

当某个客户端创建一个新的HDFS文件，会计算这个文件每个block的校验和，并作为一个单独的隐藏文件保存这些校验和在同一个HDFS namespace下。

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In an incident that highlights the growing security challenges around wireless apps, Citi said its iPhone app accidentally saved information including account numbers, bill payments and security access codes in a hidden file on users' iPhones.

WSJ: Citi Discloses Security Flaw in Its iPhone App

But scaling of compute resources is linear with the number of endpoints, since in the case of the hidden location file, each one brings its own resources to the party.

FORBES: Apple Didn't Think We Needed To Know About All Those Complex Technical Issues

It also makes it easier to find the files that have been created, accessed and modified during an attack, and it is able to reconstruct deleted files from raw data found in various hidden parts of a computer's hard disk, such as unallocated space and file slack.

ECONOMIST: Forensic computing studies the anatomy of computer crime