Linux系统实现log日志自动清理
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Linux系统实现log日志自动清理
背景简介
在实际项目中由于服务器内存有限，人工制定的定时清理时常会忘记。因此启用linux系统定时任务去执行日志清理功能。引用文献
创建shell脚本及执行权限
touch /**/**/auto-del-log.sh //创建脚本文件
cd /**/** //进入该目录
chmod +x auto-del-log.sh //修改执行权限
编辑shell脚本
vi auto-del-log.sh //编辑执行文件
#!/bin/sh
find /**/**/logs/ -mtime +10 -name "*.log.*" -exec rm -rf {} \;
添加到自动更新脚本
crontab -e
添加执行shell脚本
30 0 * * * /**/**/auto-del-log.sh
crontab样式注释： # For details see man 4 crontabs
# Example of job definition:
# .---------------- minute (0 - 59)
# | .------------- hour (0 - 23)
# | | .---------- day of month (1 - 31)
# | | | .------- month (1 - 12) OR jan,feb,mar,apr ...
# | | | | .---- day of week (0 - 6) (Sunday=0 or 7) OR sun,mon,tue,wed,thu,fri,sat
# | | | | |
# * * * * * user-name command to be executed
shell脚本说明：
说明：
find：Linux查找命令，用户查找指定条件的文件
/home/apache-tomcat-7.0.55-13-990*/webapps/HollyProxyServer2.0/WEB-INF/logs/：需要进行清理的目标目录
-mtime：标准语句写法
+10 ：数字代表天数
-name "*.log.*"：目标文件的类型，带有log的所有文件
-exec：固定写法
rm -rf：强制删除包括目录在内的文件
{} \;：固定写法，一对大括号+空格+\+;
eg:
find /usr/local/tomcat/logall/monitor/ -mtime +7 -name "*.log.*" -exec rm -rf {} \;
举例说明
#!/bin/sh
log_path=/home/tomcat/logs //日志存放目录
d=`date +%Y-%m-%d` //时间获取
d90=`date -d'7 day ago' +%Y-%m-%d` //获取删除时间7天前
cd ${log_path} && cp catalina.out $log_path/cron/catalina.out.$d.log //catalina.out文件分割，复制文件到 $log_path/cron/ 目录下生成新的日志文件
echo > catalina.out //新的空白catalina.out文件继续记录日志
rm -rf $log_path/cron/catalina.out.${d90}.log //删除超时文件
find ${log_path} -mtime +7 -name "*.*.log" -exec rm -rf {} \; //删除${log_path}目录下超过7天格式为"*.*.log"的文件
find /home/tomcat/logall/monitor/ -mtime +7 -name "*.log.*" -exec rm -rf {} \;
find /home/tomcat/logall/user/ -mtime +7 -name "*.log.*" -exec rm -rf {} \;
find /home/tomcat/logall/admin/ -mtime +7 -name "*.log.*" -exec rm -rf {} \;