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0

You probably wanted to take patch-4.4.12-rt20.patch.xz, not patches-4.4.12-rt20.tar.xz. As the extension hints, the latter is a tar archive, not a single patch file. Apparently it contains the same patches as the single-file version, but with commit messages etc. patch is smart enough to ignore useless stuff (like the tar file structure, apparently), so ...


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Your assumption that date does not require an internet connection is correct. It simply outputs the current time stored in the system-clock. (More information on time and date commands) The hardware clock is a battery-operated circuit on the motherboard that maintains the current time while the system is powered off or unplugged. On system startup, the ...


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date makes no effort to synchronize with anything at all, and merely makes some system call (that on linux a strace date ... may or may not show) to lookup the time since the epoch as known by the system. The system itself may synchronize with the BIOS clock, or if a virtual machine may obtain the current time from the parent it runs under, or may use NTP (...



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