sed仅在首次比赛时插入 [英] sed to insert on first match only

问题描述

已更新:

使用sed，如何仅在每个文件的关键字的第一个匹配项上插入(不替换)新行.

Using sed, how can I insert (NOT SUBSTITUTE) a new line on only the first match of keyword for each file.

目前，我有以下内容，但这会在包含匹配关键字的每一行中插入，并且我希望它仅针对文件中找到的第一个匹配项插入新插入行":

Currently I have the following but this inserts for every line containing Matched Keyword and I want it to only insert the New Inserted Line for only the first match found in the file:

sed -ie '/Matched Keyword/ i\New Inserted Line' *.*

例如:

Myfile.txt:

Myfile.txt:

Line 1
Line 2
Line 3
This line contains the Matched Keyword and other stuff
Line 4
This line contains the Matched Keyword and other stuff
Line 6

更改为:

Line 1
Line 2
Line 3
New Inserted Line
This line contains the Matched Keyword and other stuff
Line 4
This line contains the Matched Keyword and other stuff
Line 6

推荐答案

如果要使用sed *:

If you want one with sed*:

sed '0,/Matched Keyword/s//Matched Keyword\nNew Inserted Line/' myfile.txt

*仅适用于GNU sed

*only works with GNU sed

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