How about "head -c 1052672 /dev/urandom > /dev/sdb1; xinput set-int-prop 2 "Devi... | Hacker News

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mirimir on Jan 23, 2015 | parent | context | favorite | on: A dead man's switch for your computer?

How about "head -c 1052672 /dev/urandom > /dev/sdb1; xinput set-int-prop 2 "Device Enabled" 8 0; xset dpms force off; xscreensaver-command --lock; sync; echo o > /proc/sysrq-trigger"? That way, the keyboard and display would be gone while sync was completing. Also, does rebooting protect better against reading RAM than shutting down?

mirimir on Jan 23, 2015 [–]

This works well, and is very fast:

head -c 1052672 /dev/urandom > /dev/sdb1; xinput --disable 9; xinput --disable 10; xset dpms force off; sync; echo o > /proc/sysrq-trigger

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