linux 日志设置定时清理详解程序员

创建shell 脚本命令:

[email protected]:~# cat clearlog.sh  
find /var/lib/postgresql/data/log/ -mtime +10 -name "*" -exec rm -rf {} /;  

这个命令是find的基本用法，可以分两部分，find ~/ -name "*.aic"和 -exec rm -rf {} /; 
 ~/：在根目录下查找 
 -name 查找文件名的方式 
 "*.aic"文件名中要求后缀是aic的所有文件 
-exec 找到后执行命令 
rm -rf {}命令就是删除文件 
/;这是格式要求的，没有具体含义。 

创建定时执行计划:

• 定时任务编辑命令: crontab -e

# Edit this file to introduce tasks to be run by cron. 
# 
# Each task to run has to be defined through a single line 
# indicating with different fields when the task will be run 
# and what command to run for the task 
# 
# To define the time you can provide concrete values for 
# minute (m), hour (h), day of month (dom), month (mon), 
# and day of week (dow) or use '*' in these fields (for 'any').# 
# Notice that tasks will be started based on the cron's system 
# daemon's notion of time and timezones. 
# 
# Output of the crontab jobs (including errors) is sent through 
# email to the user the crontab file belongs to (unless redirected). 
# 
# For example, you can run a backup of all your user accounts 
# at 5 a.m every week with: 
# 0 5 * * 1 tar -zcf /var/backups/home.tgz /home/ 
# 
# For more information see the manual pages of crontab(5) and cron(8) 
# 
# m h  dom mon dow   command 
 
# 文件中加入该行,表示每天0点执行命令 `sh /root/clearlog.sh` 
* 0 * * * sh /root/clearlog.sh 
 

重启cron 服务:

/sbin/service crond start //启动服务  
/sbin/service crond stop //关闭服务  
/sbin/service crond restart //重启服务  
/sbin/service crond reload //重新载入配置