Recall that each process has a parent, and you can trace this family tree of sorts all the way back to PID 1, otherwise known as init.

记住，每个进程都有父进程，并且您可以跟踪从每个子进程一直到PID 1(或称为init)的整个进程家族树。

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This code is included in the init method of the sample portlet (see Listing 1).

示例Portlet的init方法中包括以下代码(参见清单1)。

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As defined in Listing 1, initdefault specifies that the default init level is 2 (multi-user mode).

正如清单1定义的一样，initdefault指定默认的init级别是2(多用户模式)。

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