Before looking at editing the command line with KSH, you must set up your environment.
在介绍如何使用ksh编辑命令行之前，必须设置您的环境。
Then from the command line, specify the environment variable name with its value.
然后，在命令行上指定环境变量名和值。
Setting up the command-line environment with KSH.
使用ksh设置命令行环境。
Compiler options can be set either in the development environment or on the command line.
编译器选项可以在开发环境中设定，也可以在命令列设定。
Compiler options can be set either in the development environment or on the command line.
编译器选项可以在开发环境中设定，也可以在命令列设定。
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