ENVIRONMENT
Generalizations
Congratulations! You learned to use the bash profile to configure the environment. What can we generalize so far?

The environment refers to the preferences and settings of the current user.
The nano editor is a command line text editor used to configure the environment.
~/.bash_profile is where environment settings are stored. You can edit this file with nano.
environment variables are variables that can be used across commands and programs and hold information about the environment.

export VARIABLE="Value" sets and exports an environment variable.
USER is the name of the current user.
PS1 is the command prompt.
HOME is the home directory. It is usually not customized.
PATH returns a colon separated list of file paths. It is customized in advanced cases.
env returns a list of environment variables.

ENVIRONMENT的更多相关文章

  1. IEEE 802.11p （WAVE，Wireless Access in the Vehicular Environment）

    IEEE 802.11p(又称WAVE,Wireless Access in the Vehicular Environment)是一个由IEEE 802.11标准扩充的通讯协定.这个通讯协定主要用在 ...

  2. 修改/etc/profile和/etc/environment导致图形界面无法登陆的问题

    在使用ubuntu开发时,往往要修改PATH变量,有时会通过修改/etc/profile和/etc/environment来修改默认的PATH变量,但是一旦出错,很容易造成无法登陆进入图形界面的问题. ...

  3. System.Environment.CurrentDirectory和Application.StartupPath

    System.Environment.CurrentDirectory的含义是获取或设置当前工作路径,而Application.StartupPath是获取程序启动路径,表面上看二者没什么区别,但实际 ...

  4. Oracle客户端工具出现“Cannot access NLS data files or invalid environment specified”错误的解决办法

    Oracle客户端工具出现"Cannot access NLS data files or invalid environment specified"错误的解决办法 方法一:参考 ...

  5. TOMCAT-报错The BASEDIR environment variable is not defined correctly

    <span style="font-size:18px;">The BASEDIR environment variable is not defined correc ...

  6. cant create oci environment

    网上这些人真是七里八里呀,下了navicat premium,想连接远程数据库,结果报cant create oci environment. 看了好几篇帖子博客,都说要下一个instantclien ...

  7. [Keras] Install and environment setting

    Documentation: https://keras.io/ 1. 利用anaconda 管理python库是明智的选择. conda update conda conda update anac ...

  8. arcgis arcengine Using environment settings

    In this topic About using environment settings Environment settings summary table About using enviro ...

  9. undefined method `environment' for nil:NilClass when importing Bootstrap into rails

    今天做项目时往Gemfile里加了各gem, 然后bundle update了一下, 然后悲剧了,出现了undefined method `environment' for nil:NilClass ...

  10. Maven No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK? 问题

    maven编译项目时出错,提示信息如下: [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3 ...

随机推荐

  1. keil的可烧写hex文件生成

    右键Target1 Options Target for ‘Target1’ ...->Output->Create Executable:->Create HEX File Bui ...

  2. Windows 应用商店无法下载---启动更新

    今天想在应用商店下载东西,但是以直没成功,查看原因结果是因为我的Windows自动更新关了. 百度,如何打开自动更新,要打开本地组策略编辑器,但是我是Windows家庭版,,,没有这个东西,, 最后, ...

  3. Vue2.0

    Vue 1.0到2.0的变化: 1.在每个组件的模板中,不再支持片段代码 组件中的模板: 之前: <template> <h3我是组件<strong>我是加粗模板< ...

  4. 苹果pns推送和唤醒

    使用的是苹果自己的推送服务器 certificatePath 推送证书 VoipcertificatePath 唤醒证书 certificatePassword 证书密码 以上三项都是需要使用上架了A ...

  5. Yii2事件驱动的运行机制

    最近一段时间正在作个一个项目,这个项目会系统逻辑比较复杂,使用PHP Yii2,使用事件驱动机制进行研发,下面就最近研究事件驱动机制的使用作以下总结: 流程如下: 1.要创建含有事件注入的类,一般这样 ...

  6. robot framework下载文件操作

    不同的浏览器点击[下载]按钮之后,需要点击保存,还是确定,或者直接默认直接下载都是不一样的 1.chrome:点击[下载]之后,会自动执行下载操作,直到下载结束 A)点击下载,等待下载结束(sleep ...

  7. API Gateway : Kong

    what problems 多个服务要写自己的log,auth,对于比较耗时的,有时还要高流量限制. solution intro 单点部署的情况: why not just haproxy log ...

  8. LeetCode - Unique Email Addresses

    Every email consists of a local name and a domain name, separated by the @ sign. For example, in ali ...

  9. 【SpringBoot】服务器端主动推送SSE技术讲解

    =====================16.高级篇幅之SpringBoot2.0服务器端主动推送SSE技术讲解 ============================ 1.服务端推送常用技术介绍 ...

  10. openstry lua redis实现负载均衡

    需求: 通过URI地址http://10.0.0.148/test2?uuid=123的uuid参数值的第一位,去实现redis的负载均衡 若uuid第一位为1,那么去10.0.0.148的redis ...