如何限制从grep返回的结果数？

我想说grep最多10行。

我不希望我的电脑辛苦工作。我希望它在grep找到10条结果后停止。可能吗？

该-m选项可能是您要寻找的：

grep -m 10 PATTERN [FILE]

来自man grep：

-m NUM, --max-count=NUM
        Stop reading a file after NUM matching lines.  If the  input  is
        standard  input  from a regular file, and NUM matching lines are
        output, grep ensures that the standard input  is  positioned  to
        just  after the last matching line before exiting, regardless of
        the presence of trailing context lines.  This enables a  calling
        process  to resume a search.

注意：找到指定数量的匹配项后，grep将停止读取文件！