+ kldunload snake_saver
kldunload: can't find file snake_saver: No such file or directory
+ true
+ kldstat
+ grep snake
+ echo 'snake unloaded'
+ vidcontrol -t off
snake unloaded
+ printf '\n'
+ vidcontrol -p
+ strings
+ head -3
SCRSHOT_
+ kldload /boot/kernel/snake_saver.ko
+ vidcontrol -t 1
+ /tmp/watch2
t= 0.0s cells=632 CHANGED
t= 0.2s cells=  2 CHANGED
t= 0.4s cells=  3 CHANGED
t= 0.6s cells=  5 CHANGED
t= 0.8s cells=  6 CHANGED
t= 1.0s cells=  7 CHANGED
t= 1.2s cells=  8 CHANGED
t= 1.4s cells=  9 CHANGED
t= 1.6s cells= 10 CHANGED
t= 1.8s cells= 11 CHANGED
t= 2.0s cells= 13 CHANGED
t= 2.2s cells= 14 CHANGED
t= 2.4s cells= 15 CHANGED
t= 2.6s cells= 17 CHANGED
t= 2.8s cells= 18 CHANGED
t= 3.0s cells= 19 CHANGED
t= 3.2s cells= 20 CHANGED
t= 3.4s cells= 22 CHANGED
t= 3.6s cells= 23 CHANGED
t= 3.8s cells= 24 CHANGED
t= 4.0s cells= 24 CHANGED
t= 4.2s cells= 24 CHANGED
t= 4.4s cells= 24 CHANGED
t= 4.6s cells= 24 CHANGED
t= 4.8s cells= 24 CHANGED
t= 5.0s cells= 24 CHANGED
t= 5.2s cells= 24 CHANGED
t= 5.4s cells= 24 CHANGED
t= 5.6s cells= 24 CHANGED
t= 5.8s cells= 24 CHANGED
+ vidcontrol -t off
CLEAN_DONE
+ echo CLEAN_DONE