(Don’t forget that a semicolon has special meaning to UNIX shells, so you’ll probably have to quote this command: ‘-n'@;'’.)
This is the default mode of operation for free-form FORTRAN-90; the
input driver automatically appends a pseudo-semicolon (invisible) to
each logical line of source code. Since it is the default, one doesn’t
have to use it unless one wishes to negate it (see Negating options). In that case, it is best to place the ‘--n@;’ command
in the source file, as ‘@n9[--n@;]’. If one places it on the
command line, be sure to set the language first: -n9 --n@;.
For free-format FORTRAN-90, when ‘-n@;’ is in effect (the default), ‘-np’ is also turned on. See -np.
For further discussion, see the companion command -n;.