bash - 如何在 xml 文件的第二行之后的 append 文本？

Question

I have a directory with around 150 subfolders. Each of them contains a *.xml file. Now, I want to append a multiple-line text, starting after the 2nd line in all those xmls. I know works with sed command, but how do I actually do that?

Answer 1

with sed to insert a text after the specified second line 2a\ . -i option to edit file in place

sed -i "2a\\$text" file.txt

Answer 2

With AWK you can do:

var="some text"

awk -v a="$var" 'NR != 1{ print $0, a}' file.xml

This one, append text in the end of each line after the second line of file. But I'm not sure if this is want you want really