As a non-Java developer, I am quit stuck in Java environment setting because I am not familiar with Java. I write it down as following, I think it is the best way to write it in /etc/profile: export JAVA_HOME=/usr/local/jdk1.8.0_111 export PATH=$JAVA…

1.set up connections between vitural machine and Xshell: After we connect the virtural machine to network,we can used an application named "Xshell" to operate the machine instead of the inconvenient way to operate it.Definitely,we should connect…

How to set JAVA environment variables JAVA_HOME and PATH in Linux After installing new java (jdk or jre) or latest Java you may have usually find that the version of java is not exactly the same which you have installed. It might be showing you the s…

Explanations of Functionalities: 1. PATH env variable It is used to search the command directory when we use the console type commands. We only can use the javac and java command anywhere after the jdk\bin and jdk\jre\bin directory have been added in…

Documentation: https://keras.io/ 1. 利用anaconda 管理python库是明智的选择. conda update conda conda update anaconda conda update --all conda install mingw libpython pip install --upgrade --no-deps theano pip install keras 2. 测试theano python执行: import theano the…

1,配置环境变量 我的电脑,右键计算机图标,点击“属性” 点击“高级系统设置” 点击“环境变量” “系统变量”一栏,点击“新建” 弹出输入“变量名”.“变量值”窗口 “变量名”输入“JAVA_HOME” “变量值”输入“D:\Program Files\Java\jdk1.6.0” 点击“确定” 然后在“系统变量”一栏找到名为“Path”的变量 点击“编辑” 将“%JAVA_HOME%\bin;”添加到其“变量值”的末尾,注意如果末尾没有“;”符号,必须添加上 点击“确定” 再在“系统变量”一栏…

1.配置ssh,使集群服务器之间的通讯,不再每次都输入密码进行认证. 2. [root@hc--uatbeta2 hadoop]# start-all.shStarting namenodes on [hc--uatbeta2.novalocal]ERROR: Attempting to operate on hdfs namenode as rootERROR: but there is no HDFS_NAMENODE_USER defined. Aborting operation.Sta…

java 7 jdk http://www.ifunmac.com/2013/04/mac-jdk-7/ http://blog.sina.com.cn/s/blog_6dce99b101016744.html eclipse http://jingyan.baidu.com/article/7f41ecece8ef5b593c095c71.html…

如何改变 Visual Studio 的默认环境设置: 1. 工具栏 Tools --> Import and Export Settings... 2. 选择 Reset All Settings,单击 “Next” 3. 选择保存设置的选项,单击“Next” 4. 选择想要设定的编程环境,点击“Finish”. 参考链接:http://stackoverflow.com/questions/12084958/changing-default-enviromnent-setting-when-…

1.下载 Spark安装之前的准备 文件的解压与改名 tar -zxvf spark-2.2.0-bin-hadoop2.7.tgz rm -rf spark-2.2.0-bin-hadoop2.7.tgz 为了我后面方便配置spark,在这里我把文件夹的名字给改了 mv spark-2.2.0-bin-hadoop2.7 spark-2.2.0----------------------------------------------------------------------------…