高效使用Ubuntu技能攻略
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作者:郭孝星
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一 Ubuntu系统添加软件源
1 备份系统源列表
sudo cp /etc/apt/sources.list /etc/apt/sources.list_backup
2 修改系统源列表
打开系统源列表,内容如下所示:
#deb cdrom:[Ubuntu 14.04.2 LTS _Trusty Tahr_ - Release i386 (20150218.1)]/ trusty main restricted# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to# newer versions of the distribution.deb http://us.archive.ubuntu.com/ubuntu/ trusty main restricteddeb-src http://us.archive.ubuntu.com/ubuntu/ trusty main restricted## Major bug fix updates produced after the final release of the## distribution.deb http://us.archive.ubuntu.com/ubuntu/ trusty-updates main restricteddeb-src http://us.archive.ubuntu.com/ubuntu/ trusty-updates main restricted## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu## team. Also, please note that software in universe WILL NOT receive any## review or updates from the Ubuntu security team.deb http://us.archive.ubuntu.com/ubuntu/ trusty universedeb-src http://us.archive.ubuntu.com/ubuntu/ trusty universedeb http://us.archive.ubuntu.com/ubuntu/ trusty-updates universedeb-src http://us.archive.ubuntu.com/ubuntu/ trusty-updates universe## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team, and may not be under a free licence. Please satisfy yourself as to ## your rights to use the software. Also, please note that software in ## multiverse WILL NOT receive any review or updates from the Ubuntu## security team.deb http://us.archive.ubuntu.com/ubuntu/ trusty multiversedeb-src http://us.archive.ubuntu.com/ubuntu/ trusty multiversedeb http://us.archive.ubuntu.com/ubuntu/ trusty-updates multiversedeb-src http://us.archive.ubuntu.com/ubuntu/ trusty-updates multiverse## N.B. software from this repository may not have been tested as## extensively as that contained in the main release, although it includes## newer versions of some applications which may provide useful features.## Also, please note that software in backports WILL NOT receive any review## or updates from the Ubuntu security team.deb http://us.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiversedeb-src http://us.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiversedeb http://security.ubuntu.com/ubuntu trusty-security main restricteddeb-src http://security.ubuntu.com/ubuntu trusty-security main restricteddeb http://security.ubuntu.com/ubuntu trusty-security universedeb-src http://security.ubuntu.com/ubuntu trusty-security universedeb http://security.ubuntu.com/ubuntu trusty-security multiversedeb-src http://security.ubuntu.com/ubuntu trusty-security multiverse## Uncomment the following two lines to add software from Canonical's## 'partner' repository.## This software is not part of Ubuntu, but is offered by Canonical and the## respective vendors as a service to Ubuntu users.# deb http://archive.canonical.com/ubuntu trusty partner# deb-src http://archive.canonical.com/ubuntu trusty partner## This software is not part of Ubuntu, but is offered by third-party## developers who want to ship their latest software.deb http://extras.ubuntu.com/ubuntu trusty maindeb-src http://extras.ubuntu.com/ubuntu trusty main
删除所有内容,并替换掉新的软件源,软件源的选择有很多,以下是几种选择:
Ubuntu官方软件源
deb http://archive.ubuntu.com/ubuntu/ vivid main restricted universe multiversedeb http://archive.ubuntu.com/ubuntu/ vivid-security main restricted universe multiversedeb http://archive.ubuntu.com/ubuntu/ vivid-updates main restricted universe multiversedeb http://archive.ubuntu.com/ubuntu/ vivid-proposed main restricted universe multiversedeb http://archive.ubuntu.com/ubuntu/ vivid-backports main restricted universe multiversedeb-src http://archive.ubuntu.com/ubuntu/ vivid main restricted universe multiversedeb-src http://archive.ubuntu.com/ubuntu/ vivid-security main restricted universe multiversedeb-src http://archive.ubuntu.com/ubuntu/ vivid-updates main restricted universe multiversedeb-src http://archive.ubuntu.com/ubuntu/ vivid-proposed main restricted universe multiversedeb-src http://archive.ubuntu.com/ubuntu/ vivid-backports main restricted universe multiverse
网易软件源(广东广州电信/联通千兆双线接入)
deb http://mirrors.163.com/ubuntu/ vivid main restricted universe multiversedeb http://mirrors.163.com/ubuntu/ vivid-security main restricted universe multiversedeb http://mirrors.163.com/ubuntu/ vivid-updates main restricted universe multiversedeb http://mirrors.163.com/ubuntu/ vivid-proposed main restricted universe multiversedeb http://mirrors.163.com/ubuntu/ vivid-backports main restricted universe multiversedeb-src http://mirrors.163.com/ubuntu/ vivid main restricted universe multiversedeb-src http://mirrors.163.com/ubuntu/ vivid-security main restricted universe multiversedeb-src http://mirrors.163.com/ubuntu/ vivid-updates main restricted universe multiversedeb-src http://mirrors.163.com/ubuntu/ vivid-proposed main restricted universe multiversedeb-src http://mirrors.163.com/ubuntu/ vivid-backports main restricted universe multiverse
搜狐软件源山东联通千兆接入)
deb http://mirrors.sohu.com/ubuntu/ vivid main restricted universe multiversedeb http://mirrors.sohu.com/ubuntu/ vivid-security main restricted universe multiversedeb http://mirrors.sohu.com/ubuntu/ vivid-updates main restricted universe multiversedeb http://mirrors.sohu.com/ubuntu/ vivid-proposed main restricted universe multiversedeb http://mirrors.sohu.com/ubuntu/ vivid-backports main restricted universe multiversedeb-src http://mirrors.sohu.com/ubuntu/ vivid main restricted universe multiversedeb-src http://mirrors.sohu.com/ubuntu/ vivid-security main restricted universe multiversedeb-src http://mirrors.sohu.com/ubuntu/ vivid-updates main restricted universe multiversedeb-src http://mirrors.sohu.com/ubuntu/ vivid-proposed main restricted universe multiversedeb-src http://mirrors.sohu.com/ubuntu/ vivid-backports main restricted universe multiverse
阿里云软件源(北京万网/浙江杭州阿里云服务器双线接入)
deb http://mirrors.aliyun.com/ubuntu/ vivid main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ vivid-security main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ vivid-updates main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ vivid-proposed main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ vivid-backports main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ vivid main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ vivid-security main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ vivid-updates main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ vivid-proposed main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ vivid-backports main restricted universe multiverse
中国开源软件中心软件源(北京光环新网服务器)
deb http://mirrors.oss.org.cn/ubuntu/ vivid main restricted universe multiversedeb http://mirrors.oss.org.cn/ubuntu/ vivid-security main restricted universe multiversedeb http://mirrors.oss.org.cn/ubuntu/ vivid-updates main restricted universe multiversedeb http://mirrors.oss.org.cn/ubuntu/ vivid-proposed main restricted universe multiversedeb http://mirrors.oss.org.cn/ubuntu/ vivid-backports main restricted universe multiversedeb-src http://mirrors.oss.org.cn/ubuntu/ vivid main restricted universe multiversedeb-src http://mirrors.oss.org.cn/ubuntu/ vivid-security main restricted universe multiversedeb-src http://mirrors.oss.org.cn/ubuntu/ vivid-updates main restricted universe multiversedeb-src http://mirrors.oss.org.cn/ubuntu/ vivid-proposed main restricted universe multiversedeb-src http://mirrors.oss.org.cn/ubuntu/ vivid-backports main restricted universe multiverse
3 刷新源列表
sudo apt-get update
二 Ubuntu系统添加环境变量
环境变量:环境变量就是指定一个目录,在软件运行的时候,相关程序会自动到该目录下寻找相关文件。
在Ubuntu系统中,有三种方式用来添加环境变量。
2.1 在命令下添加
#PATH=$PATH:~/smart-develop/java/jdk1.8.0_51/bin
这种方法只会对当前回话有效,每当用户登出或系统注销后,PATH设置会自动失效。
2.2 在/etc/profile文件中添加
export PATH=~/smart-develop/java/jdk1.8.0_51/bin:$PATH
注意:=两边不能有空格。
文件修改后,可以用以下命令
source /etc/profile
该方法的原理就是再执行一次/etc/profile shell脚本,注意如果用sh /etc/profile是不行的,因为sh是在子shell进程中执行的,即使PATH改变了也不会反应到当前环境中,但是source是在当前shell进程中执行的,所以我们能看到PATH的改变。
2.3 在.bashrc文件中添加
export PATH=~/smart-develop/java/jdk1.8.0_51/bin:$PATH
这种配置只对当前用户有效。
三 Ubuntu系统高效截图
截图是我们常见的需求,快捷高效是一个好的截图工具的标志。Ubuntu也自带了截图工具,可以区域截图也可以全屏截图,如下所示:
但是Ubuntu的区域截图截完之后不能调整选取,这个不太方便,这里推荐另一个截图工具shutter。
首先安装在Ubuntu软件中心shutter,如下所示:
shutter的命令选项如下所示:
我们可以根据自己的需要把这些命令(通常我们用来的也就是区域截图和活动窗口截图)添加到快捷键,如下所示:
这样设置完成以后,我们就可以自由的用快捷键进行区域截图和活动窗口截图啦。
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