重击：查找匹配的文本并替换下一行

Question

Alert: I have seen these sort of questions before on stackoverflow. I searched a lot. Followed solutions but could not solve the problem.

I have a variable $NEW_FILE which gives a value of nothing(./location/file1)] when you do echo $NEW_FILE

I have a file test1.txt which contains:

Hello, World!

This is not working

I don't know a thing about sed and awk

Now I want to search for word - working and add a new line after that contained in $NEW_FILE So desired output would be:

Hello, World!

This is not working

nothing(./location/file1)]

I don't know a thing about sed and awk

How do i achive this in a bash using sed or awk?

This is what i tried: awk '/working/ { print; print $NEW_FILE; next}1' test1.txt

This gives output:

Hello, World!

This is not working

$NEW_FILE

I don't know a thing about sed and awk

Can someone help me with this?

I think we also have to consider the forward and backward slashes in NEW_FILE variable.

Answer 1

Your NEW_FILE is probably a bash-variable and therefore not a variable in awk. So, either let bash do the expansion:

awk '/working/ { print; print "'$NEW_FILE'"; next}1' test1.txt

or pass/set the variable from the command line:

awk -v NEW_FILE="$NEW_FILE" '/working/ { print; print NEW_FILE; next}1' test1.txt