GNU Fortran (Ubuntu 4.8.5-4ubuntu6) 4.8.5 Copyright (C) 2015 Free Software Foundation, Inc. GNU Fortran comes with NO WARRANTY, to the extent permitted by law. You may redistribute copies of GNU Fortran under the terms of the GNU General Public License. For more information about these matters, see the file named COPYING

Usage: gfortran-4.8 [options] file... Options: -pass-exit-codes Exit with highest error code from a phase --help Display this information --target-help Display target specific command line options --help={common|optimizers|params|target|warnings|[^]{joined|separate|undocumented}}[,...] Display specific types of command line options (Use '-v --help' to display command line options of sub-processes) --version Display compiler version information -dumpspecs Display all of the built in spec strings -dumpversion Display the version of the compiler -dumpmachine Display the compiler's target processor -print-search-dirs Display the directories in the compiler's search path -print-libgcc-file-name Display the name of the compiler's companion library -print-file-name=<lib> Display the full path to library <lib> -print-prog-name=<prog> Display the full path to compiler component <prog> -print-multiarch Display the target's normalized GNU triplet, used as a component in the library path -print-multi-directory Display the root directory for versions of libgcc -print-multi-lib Display the mapping between command line options and multiple library search directories -print-multi-os-directory Display the relative path to OS libraries -print-sysroot Display the target libraries directory -print-sysroot-headers-suffix Display the sysroot suffix used to find headers -Wa,<options> Pass comma-separated <options> on to the assembler -Wp,<options> Pass comma-separated <options> on to the preprocessor -Wl,<options> Pass comma-separated <options> on to the linker -Xassembler <arg> Pass <arg> on to the assembler -Xpreprocessor <arg> Pass <arg> on to the preprocessor -Xlinker <arg> Pass <arg> on to the linker -save-temps Do not delete intermediate files -save-temps=<arg> Do not delete intermediate files -no-canonical-prefixes Do not canonicalize paths when building relative prefixes to other gcc components -pipe Use pipes rather than intermediate files -time Time the execution of each subprocess -specs=<file> Override built-in specs with the contents of <file> -std=<standard> Assume that the input sources are for <standard> --sysroot=<directory> Use <directory> as the root directory for headers and libraries -B <directory> Add <directory> to the compiler's search paths -v Display the programs invoked by the compiler -### Like -v but options quoted and commands not executed -E Preprocess only; do not compile, assemble or link -S Compile only; do not assemble or link -c Compile and assemble, but do not link -o <file> Place the output into <file> -pie Create a position independent executable -shared Create a shared library -x <language> Specify the language of the following input files Permissible languages include: c c++ assembler none 'none' means revert to the default behavior of guessing the language based on the file's extension Options starting with -g, -f, -m, -O, -W, or --param are automatically passed on to the various sub-processes invoked by gfortran-4.8. In order to pass other options on to these processes the -W<letter> options must be used. For bug reporting instructions, please see: <file:///usr/share/doc/gcc-4.8/README.Bugs>.