Insert a line at specific line number with sed or awk

Question

I have a script file which I need to modify with another script to insert a text at the 8th line.

String to insert: Project_Name=sowstest, into a file c

Answer 1

For those who are on SunOS which is non-GNU, the following code will help:

sed '1i\^J
line to add' test.dat > tmp.dat

• ^J is inserted with ^V+^J
• Add the newline after '1i.
• \ MUST be the last character of the line.
• The second part of the command must be in a second line.