Best Unix Tricks?
pbhjpbhj: altgr-sysreq-r, then -e -i -s -u -b (spells busier backwards). This will do a safe shut down and reboot including sync, even sometimes when ctrl-alt-del won't work. Also you can use altgr-sysrq-k like ctrl-alt-bksp to kill the window manager. Try altgr-sysrq-h from a console to see a terse help message.Note altgr is the right hand alt key, the left one should work too but I find the combos harder to do then, and sysrq is "system request" the same key as "print screen".IIRC Ubuntu now defaults to disabling the "magic sysrq" key combinations so YMMV.