一台服务器运行一段时间后，系统就会产生各种各样的日志，而这些日志其实暴漏了系统的很多信息，这时候就需要定期清理使用痕迹
额外运行一次 history -c 清理自己的命令列表
简单的清理脚本如下
#!/bin/bash if [ -f "/var/log/boot.log" ]; then cat /dev/null > /var/log/boot.log; fi if [ -f "/var/log/alternatives.log" ]; then cat /dev/null > /var/log/alternatives.log; fi if [ -f "/var/log/apport.log" ]; then cat /dev/null > /var/log/apport.log; fi if [ -f "/var/log/auth.log" ]; then cat /dev/null > /var/log/auth.log; fi if [ -f "/var/log/bootstrap.log" ]; then cat /dev/null > /var/log/bootstrap.log; fi if [ -f "/var/log/btmp" ]; then cat /dev/null > /var/log/btmp; fi if [ -f "/var/log/dmesg" ]; then cat /dev/null > /var/log/dmesg; fi if [ -f "/var/log/dpkg" ]; then cat /dev/null > /var/log/dpkg; fi if [ -f "/var/log/fail2ban" ]; then cat /dev/null > /var/log/fail2ban; fi if [ -f "/var/log/firewalld" ]; then cat /dev/null > /var/log/firewalld; fi if [ -f "/var/log/kern" ]; then cat /dev/null > /var/log/kern; fi if [ -f "/var/log/lastlog" ]; then cat /dev/null > /var/log/lastlog; fi if [ -f "/var/log/syslog" ]; then cat /dev/null > /var/log/syslog; fi if [ -f "/var/log/wtmp" ]; then cat /dev/null > /var/log/wtmp; fi if [ -f "~/.bash_history" ]; then cat /dev/null > ~/.bash_history; fi if [ -f "~/.mysql_history" ]; then cat /dev/null > ~/.mysql_history; fi if [ -f "~/.viminfo" ]; then cat /dev/null > ~/.viminfo; fi rm -f /var/log/*.gz rm -f /var/log/*.1 journalctl --rotate journalctl --vacuum-time=1s journalctl --vacuum-size=1B
CentOS 可能需要这个
#!/bin/bash cat /dev/null > /var/log/boot.log cat /dev/null > /var/log/btmp cat /dev/null > /var/log/cron cat /dev/null > /var/log/dmesg cat /dev/null > /var/log/firewalld cat /dev/null > /var/log/grubby cat /dev/null > /var/log/lastlog cat /dev/null > /var/log/mail.info cat /dev/null > /var/log/maillog cat /dev/null > /var/log/messages cat /dev/null > /var/log/secure cat /dev/null > /var/log/spooler cat /dev/null > /var/log/syslog cat /dev/null > /var/log/tallylog cat /dev/null > /var/log/wpa_supplicant.log cat /dev/null > /var/log/wtmp cat /dev/null > /var/log/yum.log cat /dev/null > /var/log/tuned/tuned.log rm -f /var/log/*-20* > /dev/null 2>&1 if [ -d "/var/log/anaconda/" ] ; then cat /dev/null > /var/log/anaconda/anaconda.log > /dev/null 2>&1 cat /dev/null > /var/log/anaconda/ifcfg.log > /dev/null 2>&1 cat /dev/null > /var/log/anaconda/journal.log > /dev/null 2>&1 cat /dev/null > /var/log/anaconda/packaging.log > /dev/null 2>&1 cat /dev/null > /var/log/anaconda/program.log > /dev/null 2>&1 cat /dev/null > /var/log/anaconda/storage.log > /dev/null 2>&1 cat /dev/null > /var/log/anaconda/syslog > /dev/null 2>&1 cat /dev/null > /var/log/anaconda/X.log > /dev/null 2>&1 fi if [ -d "/var/log/audit/" ] ; then rm -f /var/log/audit/audit.log* > /dev/null 2>&1 cat /dev/null > /var/log/audit/audit.log > /dev/null 2>&1 fi cat /dev/null > ~/.bash_history cat /dev/null > ~/.mysql_history cat /dev/null > ~/.viminfo
