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Thanks, it works!
But now I have another problem. I looked in /bin and g95 is present but I cannot use it. When I just write "g95" he says "command not found". So I also create a symbolic link in /usr/bin but it still doesn't work....
 
Type this command:

ls -l /bin/g95

It should give you something like this:

lrwxr-xr-x 1 root wheel 30 Dec 7 22:19 /bin/g95 -> /path/to/g95

Make sure that the file that the link points to ("/path/to/g95" in this case) actually exists.
 
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