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如何在Ubuntu 14.04中默认关闭蓝牙

我最近新买了一台Dell Inspiron 7437我第一时间做的一些事情之一就是让预装的Windows 8和Ubuntu 14.04双启动。我旧的笔记本没有蓝牙,听起来很奇怪但事实就是这样。这就是我为何从来没有注意到蓝牙总是在Ubuntu的每次启动时自动开启

从节能和安全目的来说这都不是件好事。而且我几乎不使用蓝牙所以我为何要让蓝牙默认启用尽管在Ubuntu中只要一次点击就能关闭蓝牙但每次登录都要这样重复地做一遍真是件令人泄气的任务。更简单的解决方案是在Ubuntu启动的时候关闭蓝牙

在今天的帖子中,我将与您分享如何在每次启动是默认禁用蓝牙。

在Ubuntu 14.04中默认关闭蓝牙:

打开一个终端并使用以下命令来安装gksu如果你还没有安装它的话译注如果你已经有了gksu那么可以使用它如果还没有也不想安装那你使用sudo一样可以

sudo apt-get install gksu

gksu是用来在以root权限运行程序时输入密码的程序。当你已经安装了gksu之后使用下列命令

gksudo gedit /etc/rc.local

它会打开rc.local这个文件。只需在文件中的exit 0之前加入下列命令

rfkill block bluetooth

就这样你的rc.local文件看起来就像这样

这就是全部步骤了。重新启动电脑,您应该能够看到蓝牙已经被禁用了。当然您需要使用它的时候可以从指示器面板的蓝牙标志打开它。

小说明:

这一小部分只是对我们做了什么进行简短的解释。您并不一定要阅读完这一部分。您可以直接跳到评论部分留下您的建议和感谢 :)

rc.local文件是用来记录在系统启动的时候运行的各种shell命令的。这些命令是用户定义的。在一个新的安装中rc.local文件中没有任何命令。我们做的就是在这里面加入命令 rfkill block bluetoothrfkill是一个用来查询各种开关按钮和底层系统接口状态的工具。我们在rc.local中使用这个命令来在每次启动的时候软关闭译注与其对应的是硬关闭指通过硬件开关来关闭蓝牙。我希望这些能把原理解释的清楚一点。


via: http://itsfoss.com/turn-off-bluetooth-by-default-in-ubuntu-14-04/

译者:alim0x 校对:wxy

本文由 LCTT 原创翻译,Linux中国 荣誉推出