ubuntu 14.04源更新以及安装软件

Ubuntu14.04 搜狐更新源及安装软件

sudo vim /etc/apt/source.list

# 将软件源改为 sohu 的
deb http://mirrors.sohu.com/ubuntu/ trusty main restricted universe multiverse
deb http://mirrors.sohu.com/ubuntu/ trusty-security main restricted universe multiverse
deb http://mirrors.sohu.com/ubuntu/ trusty-updates main restricted universe multiverse
deb http://mirrors.sohu.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb http://mirrors.sohu.com/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ trusty main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ trusty-backports main restricted universe multiverse

2. 更新并升级已有软件，并安装一些基础依赖库

sudo apt-get update

sudo apt-get upgrade
sudo apt-get install vim git build-essential unzip libv4l-dev libx264-dev

apt-get install libasound2-dev

sudo apt-get install libqt4-* libqml*

qt下载地址http://download.qt.io/archive/

apt-get install libasound2-dev

配置jdk以及ndk

ubuntu下JDK配置本质上和win是一样的：

1、去官网下载JDK、NDK

2、解压后得到名字为jdk = 1.8.0_131的文件夹，ndk = android-ndk-r14b。

3、配置jdk和ndk环境变量：

在启动终端并输入

1. gedit/etc/profile

在末尾添加一下配置，保存并退出

1. #setjdkenvironment
2. exportJAVA_HOME=/home/jeck/jdk/jdk1.8.0_131
3. exportCLAsspATH=.:$JAVA_HOME/lib:$JAVA_HOME/jre/lib:$CLAsspATH
4. exportPATH=$JAVA_HOME/bin:$JAVA_HOME/jre/bin:$PATH
5. 
   
6. export ANDROID_NDK= /home/jeck/ndk/android-ndk-r14b
7. PATH=$ANDROID_NDK:$PATH
   

终端输入一下命令使配置生效

source/etc/profile

4、查看配置是否成功。在终端输入

java-version

如果显示版本是1.7.0.21则配置成功，如下显示：

javaversion"1.8.0_131"

Java(TM)SERuntimeEnvironment(build1.8.0_131-b11)

JavaHotSpot(TM)ServerVM(build23.21-b01,mixedmode)

ndk测试,在终端输入，如下显示配置成功:

1. copyright (C) 2006 Free Software Foundation,Inc.
   
2. This is free software; see the source for copying conditions.
   
3. There is NO warranty; not even for MERCHANTABILITY or fitness FOR A
   
4. PARTIculaR PURPOSE.
5. This program built for x86_64-pc-linux-gnu
   

如果显示仍是openJDK，执行步骤5，再测试

5、配置默认JDK，ubuntu下默认JDK是openJDK。。终端输入

sudoupdate-alternatives--install/usr/lib/javajava/usr/lib/jvm/jdk1.7.0_17/bin/java300

sudoupdate-alternatives--install/usr/lib/javacjavac/usr/lib/jvm/jdk1.7.0_17/bin/javac300

执行下面命令，配置需要默认的JDK

sudoupdate-alternatives--configjava

会列出jdk版本，其中被“*”标注的为默认JDK。如果要维持当前默认JDK，直接按回车键即可；否则输入相应JDK的编号将其设置为默认版本。