的Mac OS X 10.9 - 设置永久的环境变量 [英] Mac OS X 10.9 - setting permanent environment variables

问题描述

我设置一个永久的环境变量（即，一个不需要出口，我开始一个新的终端会话每次）在Mac OS X 10.9怎么办？我已经找到了一些答案有关修改我的的.bash_profile 和 .profile文件，但是没有这些选择似乎工作作为永久的解决方案 - 只是暂时的。我想设置的变量是 MULE_HOME 。我有以下线在我的bash的个人资料：

How do I set a permanent environment variable (i.e. one that does not need exporting every time I start a new Terminal session) in Mac OS X 10.9? I've found a number of answers about modifying my .bash_profile and .profile, however neither of these options seem to work as permanent solutions - only temporary. The variable I'm trying to set is MULE_HOME. I have the following line in my bash profile:

export MULE_HOME=$(/opt/mule-standalone-3.4.0)

然而，当我启动终端，我得到以下行（不知道这是正常的行为）：

However, when I start Terminal I get the following line (not sure if this is normal behaviour?):

-bash: /opt/mule-standalone-3.4.0: is a directory

和运行一个简单的 ENV 命令返回以下内容：

And running a simple env command returns the following:

TERM_PROGRAM=Apple_Terminal
SHELL=/bin/bash
TERM=xterm-256color
TMPDIR=/var/folders/fc/68bqp4jj411gynj5qvwhq6z1shs1fy/T/
Apple_PubSub_Socket_Render=/tmp/launch-xKtkql/Render
TERM_PROGRAM_VERSION=326
TERM_SESSION_ID=E97BFE4B-AF85-4933-B252-0883CC085349
USER=dan
SSH_AUTH_SOCK=/tmp/launch-rEmTWW/Listeners
__CF_USER_TEXT_ENCODING=0x730C85DE:0:0
PATH=/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin
__CHECKFIX1436934=1
PWD=/Users/dan
JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.7.0_51.jdk/Contents/Home
LANG=en_GB.UTF-8
MULE_HOME=
SHLVL=1
HOME=/Users/dan
LOGNAME=danwiseman
_=/usr/bin/env

为了解决这个问题，我现在不必键入出口MULE_HOME = /选择/骡子独立-3.4.0 每次我开始一个新的终端会话时间其中，虽然不费劲，有点不方便。我在做什么错在这里引起该变量只能临时设置？先谢谢了。

In order to get around this I'm currently having to type export MULE_HOME=/opt/mule-standalone-3.4.0 every time I start a new Terminal session which, whilst not strenuous, is a little inconvenient. What am I doing wrong here that is causing the variable to only be set temporarily? Thanks in advance.

推荐答案

删除该 $（...）位，这将尝试在括号内执行命令并设置 $ MULE_HOME 来不管它产生。在你的情况 /opt/mule-standalone-3.4.0 是不是可执行文件，因此错误你得到。

Drop the $(...) bit, which would attempt to execute the command within the brackets and set $MULE_HOME to whatever it produces. In your case /opt/mule-standalone-3.4.0 is not an executable, hence the error you are getting.

export MULE_HOME=/opt/mule-standalone-3.4.0

<击>，并使用〜/ .bashrc中不是〜/ .bash_profile中。

编辑：看来的意见是，你应该设置在你的〜/ .bash_profile中脚本环境变量，而不是〜/ .bashrc中脚本。

It seems opinion is that you should set environment variables in your ~/.bash_profile script, and not ~/.bashrc script.

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