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<title>Shutting Down the System</title>
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To shut down a running Linux system, you must not reboot with the
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reset switch on the front or back of your computer, or just turn off
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the computer. Linux must be shut down in a controlled manner,
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otherwise files may be lost and disk damage incurred. You can press
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the key combination <keycombo> <keycap>Ctrl</keycap>
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<keycap>Alt</keycap> <keycap>Del</keycap> </keycombo>
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<phrase arch="powerpc;m68k"> or <keycombo> <keycap>Control</keycap>
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<keycap>Shift</keycap> <keycap>Power</keycap> </keycombo> on Macintosh
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systems</phrase>. You may also log in as
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root and type <userinput>shutdown -h now</userinput>,
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<userinput>reboot</userinput>, or <userinput>halt</userinput> if
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either of the key combinations do not work or you prefer to type