问题描述
该-m
选项可能是您正在寻找的:
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:一旦找到指定数量的匹配项,grep 就会停止读取文件!
解决方法
我想说 grep 最多 10 行。
我不想让我的电脑努力工作。我希望它在 grep 找到 10 个结果后停止。可能吗?