Maybe try sdmem: http://manpages.ubuntu.com/manpages/trusty/man1/sdmem.1.html http://manpages.ubuntu.com/manpages/trusty/man1/sdmem.1.html Put it in a bash scr

Maybe try sdmem: http://manpages.ubuntu.com/manpages/trusty/man1/sdmem.1.html http://manpages.ubuntu.com/manpages/trusty/man1/sdmem.1.html Put it in a bash script with the above luks commands and profit.