Thanks for reply, I will explain again.

I have a huge file almost 1000 lines, which is a code.

Now I want to insert a line at a specific position. For that I know the one frame name first_frame and another frame name (child_frame) inside first_frame. I get the value from csv file.

csv content: first_frame, child_frame, RIK

old code:

Code:

first_frame
{

child_frame[pik,dik,nik]

}

Now what I want a command to read the file and csv file and

produce the below result.

Code:

first_frame
{

child_frame[pik,dik,nik, RIK]

}

Second logic I am looking out for..

Code:

first_frame
{
child_frame
{
a=a,
b=b,
c=c,
so on
}
}

csv content: first_frame, child_frame, d=d
expected output.

Code:

first_frame
{
child_frame
{
a=a,
b=b,
c=c,
d=d
}
}

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Moderator's Comments:

Please wrap all code, files, input & output/errors in CODE tags. It make it easier to read and preserves spaces for indenting and fixed width data