This article describes how to write, compile and execute a "Hello World" program in Fortran on Linux (RedHat / Centos / Fedora).

1. the prerequisites

• a text editor of your choice (e.g. vi)
• a Fortran compiler (e.g. gfortran - the GNU Fortran 95 compiler)

make sure you have installed the GNU Fortran 95 compiler rpm:

# rpm -qa  gcc-gfortran
gcc-gfortran-4.1.2-46.el5_4.1

If it is not installed yet, you can install it with yum (you need to be root to do that):

# yum install gcc-fortran

2. write the code

open an empty file with a text editor (e.g. vi):

# vi helloworld.f

      program helloworld
         print *,"Hello World!"
      end program helloworld

Please note: there are 6 spaces at the beginning of each line!

save the file and exit vi with ":wq + enter"

explanation

program helloworld

The name of our program is "helloworld". This is not required, but is recommended.

 print *,"Hello World!"

The command "print *" prints items to the screen.

      end program helloworld

marks the end of the program "helloworld".

3. compile the code

# gfortran helloworld.f -o helloworld

4. run the program

# ./helloworld
Hello World!

• Add New
• Search

Comments (0)

Write comment

Your Contact Details:

Name:

Email: do not notifynotify

Website:

Comment:

Title:

UBBCode:         -color-aquablackbluefuchsiagraygreenlimemaroonnavyolivepurpleredsilvertealwhiteyellow -size-tinysmallmediumlargehuge

Message:

Security

Please input the anti-spam code that you can read in the image.

Powered by !JoomlaComment 4.0 beta1

!joomlacomment 4.0 Copyright (C) 2009 Compojoom.com . All rights reserved."