Fixing this is an exercise in shell programming, though, not really part of the alarm API.
但是，解决此问题仅仅是一个shell编程练习，不是警报api的实际部分。
The Bourne shell is easier to use and understand than the C shell, but it is less practical for the complex script programming that you might want to achieve within the shell programming environment.
Bourne Shell 比 C Shell 更容易使用和理解，但是对于您可能希望在 Shell 编程环境中实现的复杂脚本编程，它可能就不太实用了。
You could address this scenario by defining a new shell DTD that combines the reference topic with the programming domain, excluding the other domains.
您可以通过定义一个将引用主题同编程域结合而但又不包含其它域的新外壳DTD来解决该情况。
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