在 route 命令上使用帮助开关 (--help) 可提供以下输出:
root@theapprentice:~# route --help
Usage: route [-nNvee] [-FC] [<AF>] List kernel routing tables
route [-v] [-FC] {add|del|flush} ... Modify routing table for AF.
route {-h|--help} [<AF>] Detailed usage syntax for specified AF.
route {-V|--version} Display version/author and exit.
-v, --verbose be verbose
-n, --numeric don't resolve names
-e, --extend display other/more information
-F, --fib display Forwarding Information Base (default)
-C, --cache display routing cache instead of FIB
<AF>=Use -4, -6, '-A <af>' or '--<af>'; default: inet …Run Code Online (Sandbox Code Playgroud)