As you probably know, UNIX systems record an atime, or access time, for each object on the filesystem that gets updated every time a file is read.
您可能知道，UNIX系统为文件系统上的每一个对象记录一个atime，或称为访问时间，每次读取文件时，atime都会被更新。
The atime is the last access time of a file, and each time a file is accessed, the underlying file system must record this timestamp.
atime是最近访问文件的时间，每当访问文件时，底层文件系统必须记录这个时间戳。
The atime is the last access time of a file, and each time a file is accessed, the underlying file system must record this timestamp.
atime是最近访问文件的时间，每当访问文件时，底层文件系统必须记录这个时间戳。
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