### 10.1 Help for command-line options ¶

To obtain a brief reminder of various command-line options, GCC provides a help option which displays a summary of the top-level GCC command-line options:

    $ gcc --help

To display a complete list of options for `gcc` and its associated programs, such as the GNU Linker and GNU Assembler, use the help option above with the verbose (`-v`) option:

    $ gcc -v --help

The complete list of options produced by this command is extremely long—you may wish to page through it using the `more` command, or redirect the output to a file for reference:

    $ gcc -v --help 2>&1 | more