You can take a cue from GCC: maintain many sets of environment variables per application and switch from one pool to another depending on the work at-hand.
您可以从GCC得到提示：为每个应用程序维护多个环境变量集，并根据手头的工作从一个集合切换到另一个集合。
What about the environment variables?
环境变量呢？
Table 1 shows these environment variables.
表1展示了这些环境变量。
Step 1: Initializing environment variables.
步骤1：初始化环境变量。
The following environment variables are used.
需要用到以下几个环境变量。
They are not necessarily environment variables.
它们不一定必须是环境变量。
Find out where to set the environment variables.
弄清在何处设置那些环境变量。
Define the following three environment variables.
定义以下三个环境变量。
One of the environment variables is named WSTK_CP.
其中一个环境变量名为WSTK_CP。
Initializing and setting the environment variables.
初始化并设置环境变量。
For DB2, update the DB2 driver environment variables.
对于DB2，更新DB 2驱动程序环境变量。
Check for input parameters and environment variables.
检查输入参数和环境变量。
The following environment variables will need to be set
需要设置以下环境变量
You must set several environment variables for ObjectGrid.
您必须为ObjectGrid设置几个环境变量。
Install the database server and set the environment variables.
安装数据库服务器并设置环境变量。
Set up your environment variables with the following commands.
用下列命令设置环境变量。
Other environment variables are germane to individual utilities.
其他环境变量与不同的实用程序有关。
Extract the environment variables that you actually need (if any).
提取出您确实需要的环境变量(如果有)。
The purpose of this command is to define a set of environment variables.
该命令的用途是定义一组环境变量。
Finally, for reading environment variables there do exist two functions.
最后，对于读取环境变量，有两个函数。
To see which environment variables are set in your shell, type printenv.
要查看您的shell中设置了哪些环境变量，键入printenv命令。
There are a few more environment variables that relate to serviceability.
还有几个与可服务性相关的环境变量。
GCC defines a variety of environment variables to customize its operation.
GCC定义各种环境变量来定制其操作。
This can be done through script package environment variables (see sidebar).
这可以通过脚本包环境变量来完成(见边栏)。
Add the following environment variables in TXSeries region environment file.
在TXSeries区域环境文件中添加下面的环境变量。
Familiarity with a text editor and setting environment variables is required.
要求熟悉文本编辑器和设定环境变量。
These environment variables should be set before the application is restarted.
应该在重新启动应用程序之前设置以下环境变量。
The loader is normally controlled by — you guessed it — environment variables.
这个加载器通常由环境变量来控制。
Features, such as the PATH and MANPATH environment variables, conserve typing.
有些特性，如PATH和MANPATH环境变量，可以减少输入工作量。
The remaining environment variables in the list above are application-specific.
上面列表中剩下的环境变量都是应用程序特定的。
应用推荐