I want to move �<!� Move this line -- >� to a new position(for example, move to second line):
Aaa� <!� Move this line -- > Bbb� ccc� ddd� �.
Which API is good for this? I know I can read the file line by line and check the line content and write to a new file, any better solutions? The file is quite big. I have to process 2000 this kind of files.