covering tracks
Covering tracks is most import for redhat.
overwrite files:
cat /dev/null > /var/log/auth.log
cat /dev/null > ~/.bash_history
# If It was used by you
cat /dev/null > ~/.python_history
cat /dev/null > ~/.sqlite_history
cat /dev/null > ~/.irb_history
clearing history:
history -c
changing variables:
export HISTFILESIZE=0
export HISTSIZE=0
Unset the historyfile variable:
unset HISTFILE
permenently clear .bash_history file:
ln -sf /dev/null ~/.bash_history
kill the current session:
kill -9 $$
Thanks!