Reading last line of input file

[206099]

Hi,

I'm posting this simple question here, because I haven't found a satisfactory solution online.
My problem is: I have a huge input unformatted file (say ~1GB) with data and I want to be able to read the last line of data without having to go through the whole file (reading line by line till I reach the end). Is there a way to jump to the last line? I'd like to do it using only F90 and not with some bash/F90 script.
Thanks.

 

[xwb]

Do you want to do it in standard Fortran 90 or are you using a specific compiler. Some compilers have additional stuff like position='append' and recordtype='stream_cr' which will cause the file cursor to be positioned at EOF. All you need to do is to open for appending, then is backspace and read.