I have a text file whose data could look like this.
data0 ; data1 10000 ; 88282 55002 ; 75555 10002 ; 22550 22222 ; 58799 .... 78954 ; 54647
Then I want to add data to it, which will make the file look like below.
The data that was in the file should never change.
data0 ; data1 ; data2 10000 ; 88282 ; 51485 55002 ; 75555 ; 48526 10002 ; 22550 ; 47892 22222 ; 58799 ; 36258 .... 78954 ; 54647 ; 58429
I want to add data to every line.
I know you could do this by reading the entire file. Then add the data to this and then write it back to the file. But the problem is that I will have a lot of data.
If I have to read out and write back all this data every time, this takes too much time.
Hence I wondered if there is no method to add data on a particular line without having to read out all data first.
Source: Windows Questions