I'm coming from windows and still new to Ubuntu. Occasionally everything freezes and I lose my taskbar and launcher. What do I do? What's the Ubuntu equivalent of ctrl+alt+del in Windows? I tried alt+f2 to bring up the "special terminal," but what can I do from there? I tried "sudo shutdown now" but that didn't fully shut down the computer and I needed a hard shutdown.
If I do manage to figure out what's wrong and fix it from the alt+f2 terminal, how do I get back to the desktop?
You may try "sudo reboot now" which will send a reboot signal and reboot the computer or sudo reboot -f now which will do the same but forcing the reboot.
Other valid commands are:
For a shutdown
sudo shutdown -h now
or
sudo poweroff
For a reboot
sudo shutdown -r now
But if everything simply halted (stopped working) you may wish to first give a chance to the killall5 command in the terminal which will attempt to log out your current session without rebooting nor shutting down. This will automatically return you to the desktop session in order to choose your username and write your password.
If you already fixed the issue in the virtual terminal you can hit CtrlAltF7 in order to return to your Desktop session.
Good luck!
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