-f If the target file already exists, then unlink it so that the link may occur. (The -f option overrides any previous -i options.)
-n If the target_file or target_dir is a symbolic link, do not follow it. This is most useful with the -f option, to replace a symlink which may point to a directory."
"Here are all the options to ln. You'll find -n and -f in here.
-F If the target file already exists and is a directory, then remove it so that the link may occur. The -F option should be used with either -f or -i options. If none is specified, -f is implied. The -F option is a no-op unless -s option is specified.
-h If the target_file or target_dir is a symbolic link, do not follow it. This is most useful with the -f option, to replace a symlink which may point to a directory.
-f If the target file already exists, then unlink it so that the link may occur. (The -f option overrides any previous -i options.)
-i Cause ln to write a prompt to standard error if the target file exists. If the response from the standard input begins with the character `y' or `Y', then unlink the target file so that the link may occur. Otherwise, do not attempt the link. (The -i option overrides any previous -f options.)
-n Same as -h, for compatibility with other ln implementations.
-s Create a symbolic link.
-v Cause ln to be verbose, showing files as they are processed."
"-f says that if the target of your command is an existing file, it should be removed and replaced by the new link. (Note that in Unix-influenced systems, ""file"" can include directories, links, pipes, etc.)
-n modifies -f, saying that if the target you specify is an existing symbolic link, it should not be removed."
