MATLAB: How to update a specific line in a text file

fopenfprintfspecific linetext filetextscanupdate

Hi folks,
I am going to read a formatted text file and update ONLY a line of that which can be in middle of text file. e.g. if contents of my text file are as the following:
test1 a1 a2 a3
test2 b1 b2 b3
test3 c1 c2 c3
I just want to update the the second line of this text file with new values like:
test2 f1 f2 f3
without changing other two lines so that I end up with
test1 a1 a2 a3
test2 f1 f2 f3
test3 c1 c2 c3
Is there any way to do so?
thanks in advance, –V

Best Answer

read the text file and them make changes to the array and then rewrite it