RegEx模式匹配单词的第n个和第m个出现

Question

我有一些示例字符串，如：

There is one wherever you one and here is the one , nowhere is the one .

我想在第二个one和第三个one之间进行提取，即and here is the

我不确定如何相应地定位我的模式..任何人都可以帮忙吗？

Answer 1

\K非常不受欢迎

grep -oP '^(.*?one){2}\K.*?(?=one)' \
     <<< "There is one wherever you one and here is the one , nowhere is the one"
and here is the