The ps command accepts zero or more PIDs as arguments and displays the associated process status.

ps 命令接受 0 个或多个 PID 作为参数并显示相关联的进程状态。

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Within most shell environments, you can use basic process substitution to embed the output of one command into the input or arguments of another.

在大多数Shell环境中，您都可以使用基本的进程替换来将一个命令的输出嵌入到另一个命令的输入或参数中。

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