#Fortran read last line from file how to
#Fortran read last line from file code

This post provides an answer to OP comment: This might lead to IOSTAT being non-zero, even if you haven't reached the end of the file. In your subroutine to read the number of lines in the file, you try to read a REAL from a file where the first word is often not a number. Read(read_unit, '(A)', iostat=ios) command(n+1) If you already dedicate 3000 lines in the beginning, there's no real reason to read everything twice: program atom_test If ( ios /= 0 ) stop 'Error opening file data.dat' Open(unit=read_unit, file='data.dat', iostat=ios) program atom_testД¬haracter(len=200), allocatable :: command(:) Better to just read from the file, then use the rewind command to move the read position back to the beginning of the file. In your subroutine, you open the file again, under the same unit.

Actually, you'll probably want to read(9, '(A)') because you want to read the whole line, not just until the first element separator (i.e.

The line read(*, *) command(i) reads the first element of standard input, not from the file.

There are a few things I notice straight away:

#Fortran read last line from file how to

Read(read_unit,*) p, p2, p3,p4,xatom(ncount)Д«ut it is not working.Can you please give me one suggestion about how to read individually from those lines which starts with ATOM?

#Fortran read last line from file code

* With the code marked as correct ncount=0 I want to get the elements separately from the ATOM rows in my data fileДЄTOM 1 S2 LJ2 1 17.000 15.030 11.630 1.00 0.00 from here i want to store 1,s2,LJ2,1,17.000,15.030 each in different parameters.

As I am very new in Fortran I have one more question related this. ! WRITE(*, '(i8, a, a)') n, ' bins read from file: ', fileIn READ(unit_read, *, IOSTAT=iostatus) dummy Open(9, file=inputdatafile, status='old') Outputfile=inputdatafile(1:len(trim(inputdatafile))-4)//'_output.dat' How To Read Numbers From A File In Fortran Fortran Read Format As I pointed out I have got very little programming experience. The system I possess now manages to omit the very first two ranges and extract the line but I cannot seem to determine out how to omit the last line. This plan is expected to ignore the very first two ranges and the Iast line of thГ© small sample data and after that extract only the day from the time line and write it to an output text file. Hello,I require some assist with changing a program code in fortran 77.