ATQ操作符的消费者可以每次从 ATQ缓冲区中读取一行数据。
The consumer of the ATQ operator can read data one row at a time from the ATQ buffer.
它允许您打开 /etc/passwd文件，并且每次读取其中的一行内容，仅截取文件中的第一个字段，然后打印这行内容。
It allows you to open the /etc/passwd file and read each line one at a time, cutting out just the first field in the file and then printing that line.
它允许您打开 /etc/passwd文件，并且每次读取其中的一行内容，仅截取文件中的第一个字段，然后打印这行内容。
It allows you to open the /etc/passwd file and read each line one at a time, cutting out just the first field in the file and then printing that line.
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