scan -a 0 -C命令会做什么？ [英] What does scan -a 0 -C command will do?

问题描述

我想知道这个命令是做什么的，任何人都知道它是什么意思吗？



我尝试过的事情：



i已在Mac bash终端上尝试过但我无法找到它的作用

i wonder what does this command do, can any one know what is it about?

What I have tried:

i have tried it on mac bash terminal but i cant find out what it does

推荐答案

它永远不会是不知道它做什么时执行应用程序的好主意（特别是通过传递命令行选项）。这样做至少和普通用户一样，而不是root用户。



对于许多应用程序，也安装了一个手册页。所以你应该首先尝试，如果有的话：

It is never a good idea to execute an application when not knwowing what it does (especially by passing command line options). Do such at least as normal user and not as root.

With many applications there is a man page installed too. So you should first try if such is available:

man scan

和

and

info scan

这应该可以解释程序的用途以及选项出现时的作用。



大多数Linux应用程序都提供了一个选项显示有关可用命令行选项的帮助。此选项通常为 -h 。所以尝试执行（风险自负）

That should explain the purpose of the program and what the options are doing when present.

Most Linux applications provide an option to show help about the available command line options. This option is usually -h. So try executing (at your own risk)

scan -h

如果列出了可用的选项，检查显示程序版本的选项（通常 -V 或 -v ）。输出通常包含应用程序/产品的更多信息名称。选项列表还将包含 -a 和 -C 选项的简短描述。

If that lists the avaible options, check for an option showing the program version (usually -V or -v). The output will often contain a more informative name of the application / product. The list of options will also contain a short description for the -a and -C options.

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