速查手册 常用命令 actions – 显示对当前工程可用的命令 update – 下载依赖 compile – 编译代码 test – 运行测试代码 package – 创建一个可发布的jar包 publish-local – 把构建出来的jar包安装到本地的ivy缓存 publish – 把jar包发布到远程仓库(如果配置了的话)   更多命令 test-failed – 运行失败的spec test-quick – 运行所有失败的以及/或者是由依赖更新的spec clean-cache –…

      变量 String yourPast = "Good Java Programmer"; val yourPast : String = "Good Java Programmer" val yourPast = "Good Java Programmer" var yourFuture = "Good Java Programmer" 自动类型推断:可变.不可变变量 class Money(amount:Int)…

scala eclipse sbt 应用程序开发 搭建Eclipse开发Scala应用程序的一般步骤 一.环境准备: 1.Scala : http://www.scala-lang.org/ 2.Scala IDE for Eclipse :scala-ide.org 3.Sbt: http://www.scala-sbt.org/ 4.Sbt Eclipse : https://github.com/typesafehub/sbteclipse   typesafe的一个sbt for ecl…

1.下载 wget https://github.com/sbt/sbt/releases/download/v0.13.15/sbt-0.13.15.tgz 2.安装 tar -zxvf sbt-0.13.15.tgz -C /root/scala/sbt 3.在/root/scala/sbt目录下面添加文件sbt: vim sbt SBT_OPTS="-Xms512M -Xmx1536M -Xss1M -XX:+CMSClassUnloadingEnabled -XX:MaxPermSize…

SBT Simple Build Tool. A interactive build tool. install windows可直接到http://www.scala-sbt.org/0.13/docs/Installing-sbt-on-Windows.html下载安装,但网速实在是太慢,我这是直接用chocolatary管理软件,所以直接一个命令choco install sbt安装,很快. common commands clean - 清除生成的文件 update – 获取依赖 com…

没用过IDEA工具,听说跟Eclipse差不多,sbt在Idea其实就等于maven在Eclipse.Spark运行在JVM中,所以要在Idea下运行spark,就先要安装JDK 1.8+ 然后加入Scala和Spark的依赖包就可以进行开发了,不要安装低版本的JDK. 先下载Idea的社区版 https://www.jetbrains.com/idea/download/download-thanks.html?platform=windows&code=IIC Scala.Spark环境 安…

Get pod ip and their coordinating NODE $ kubectl get pods -o wide If you want to get detailed information about pod, nodes, then you should set output as yaml: $ kubectl get pods -o json Show labels about pods under all namespace: $ kubectl get pods…

You may want to add my wechat public account or add my technical blog's RSS feed This list is meant to record some useful docker commands, it can help docker beginners to solve the problems they met. I'll try to keep this list current and up to date.…

This article includes some useful Ansible commands. I will try to write blogs by English. You may want to add my wechat public account or add my technical blogs's rss feed How ansible works Ansible works by connecting to your nodes and pushing out sm…

Linux的命令总结 1. man:在线请求系统帮助 例:man mkdir NAME:这个命令的完整全名 mk(make directories) SYNOPSIS:这个命令的基本语法 mkdir [OPTION]... DIRECTORY... OPTION:参数 DERECTORY:目录或者行为 DESCRIPTION:具体描述命令的使用方法 -m, --mode=MODE set file mode (as in chmod), not a=rwx – umask 左边的-m为短参数,右…