clear history command when logout linux

$> vi .bash_logout
# ~/.bash_logout

history -c
clear

Reference:
http://rcsg-gsir.imsb-dsgi.nrc-cnrc.gc.ca/documents/advanced/node125.html

linux auto logout setting

$> cd
$> vi .profile
# user will be auto logout after 300 seconds.
export TMOUT=300

如果是针对所有用户，则修改/etc/profile文件。