下一行代码指定执行您的JAR命令，如果不成功则引发错误。
The next line says to execute your JAR command and raise an error if unsuccessful.
Action： Action命令行参数用于指定您想要执行的操作。
Action: the action command line parameter is used for specifying the action that you want to perform.
histfile 变量用来指定存储命令执行历史的文件；默认设置是 $HOME/.history。
The histfile variable lets the user specify the name of the file where the command execution history should be stored; the default is $HOME/.history.
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