LinuxCommandLibrary

System control

Lock screen

$ gnome-screensaver-command -l
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$ dbus-send --type=method_call --dest=org.freedesktop.ScreenSaver /ScreenSaver org.freedesktop.ScreenSaver.Lock
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Unlock screen

$ gnome-screensaver-command -a
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$ dbus-send --type=method_call --dest=org.freedesktop.ScreenSaver /ScreenSaver org.freedesktop.ScreenSaver.SetActive boolean:false
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Reboot the system

$ reboot
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$ shutdown -r
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Shutdown the system

$ poweroff
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$ shutdown -h now
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$ reboot -p
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Shutdown the system at specific time

$ shutdown -h 18:45 "Server is going down for maintenance"
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Stop bluetooth service

$ service bluetooth stop
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Start bluetooth service

$ service bluetooth start
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Stop wifi service

$ nmcli nm wifi off
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Start wifi service

$ nmcli nm wifi on
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Turn off monitor

$ xset dpms force off
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