This file provides init information on runlevels and on which processes should be launched on each runlevel.
此文件将提供关于runlevel及在各个runlevel上应当启动的进程的init信息。
The runlevels field is ignored.
忽略运行级别域。
Runlevels 2 through 5 are multi-user states, and runlevel 6 indicates reboot.
运行级别 2 到 5 是多用户状态，运行级别 6 表示重启。
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