Linux清除日志
cat /dev/null > /var/log/wtmp
cat /dev/null > /var/log/messages
cat /dev/null > /var/log/secure
cat /dev/null > /var/log/lastlog
rm -f /var/log/wtmp*
rm -f /root/.bash_history
touch .hushlogin
history -c
cat /dev/null > /var/log/syslog
cat /dev/null > /var/adm/sylog
cat /dev/null > /var/log/wtmp
cat /dev/null > /var/log/maillog
cat /dev/null > /var/log/messages
cat /dev/null > /var/log/openwebmail.log
cat /dev/null > /var/log/maillog
cat /dev/null > /var/log/secure
cat /dev/null > /var/log/httpd/error_log
cat /dev/null > /var/log/httpd/ssl_error_log
cat /dev/null > /var/log/httpd/ssl_request_log
cat /dev/null > /var/log/httpd/ssl_access_log