添加一个定时任务，定时执行日志清理脚本：

#  (crontab -l 2>/dev/null || true; echo "59 11 * * * /usr/local/bin/clear_log.sh") | crontab -

# chmod 750  /usr/local/bin/clear_log.sh

日志清理脚本内容：

# cat /usr/local/bin/clear_log.sh

##############################################################################

#!/bin/bash

if [ -d /var/log/nginx ]; then

    cp   /var/log/nginx/error.log  /var/log/nginx/error-$(date -d "yesterday" +"%Y%m%d").log

    cat /dev/null > /var/log/nginx/error.log

    cp  /var/log/nginx/access.log  /var/log/nginx/access-$(date -d "yesterday" +"%Y%m%d").log

    cat /dev/null > /var/log/nginx/access.log

    find /var/log/nginx  -mtime +7 -type f -name  "*.log"  -exec rm -rf {} \; 

fi

if [ -d /var/log/console ]; then

find /var/log/console -mtime +7 -type f   -exec  rm -rf  {}  \;

fi

################################################################################