一臺服務器運行一段時間后，系統就會產生各種各樣的日志，而這些日志其實暴漏了系統的很多信息，這時候就需要定期清理使用痕跡
簡單的清理腳本如下
#!/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
