学步园

•                              autodel.sh脚本使用说明
  功能描述
             自动删除过期的日志文件，具体删除天数，可以在脚本中" if((LogDay+3 < NowGetDay))"行进行修改；
             日志格式类似：2010-5-12-12-59-44.txt
  技术点：
            @获取年月日数字
             NowGetDay=`date +%d`
             NowGetMonth=`date +%m`
             NowGetYear=`date +%Y`
           @字符串与数字转换
            NowGetDay=`expr ${NowGetDay} + 0`
            加号操作符两边必须是空格
           @字符串的分割和截取
             LogYear=`expr ${LogFileName#*"./"} |cut -d "-" -f1`
             把"./"去掉，然后通过"-"进行分割，其中LogFileName为./2010-5-12-12-59-44.txt

#! /bin/bash<br /> ###################################<br /> #File Name : autodel.sh<br /> #Version Number : 1.0/0.0<br /> #Describtion : remove log files beyond some days automatically,and the format of log file is like "2010-5-12-12-12-12.txt"<br /> #Author : LiWei<br /> #Date : 2010-5-12<br /> #Change Log :<br /> # $$$Revision 0.9,2010-5-12 by LiWei<br /> # Set 3 days the period to remove log files automatically<br /> # $$$Revision 0.8,2010-5-11 by LiWei<br /> # Get original version<br /> ###################################<br /> NowGetDay=`date +%d`<br /> NowGetDay=`expr ${NowGetDay} + 0` #insure space on both sides of plus operator<br /> NowGetMonth=`date +%m`<br /> NowGetMonth=`expr ${NowGetMonth} + 0`<br /> NowGetYear=`date +%Y`<br /> NowGetYear=`expr ${NowGetYear} + 0`<br /> echo "NowGetDay="${NowGetDay}<br /> echo "NowGetMonth="${NowGetMonth}<br /> echo "NowGetYear="${NowGetYear}<br /> echo<br /> for LogFileName in `find ./ -name "*-*-*-*.txt"`<br /> do<br /> echo "LogFileName="${LogFileName}<br /> #split LogFileName string with "-" char ,then intercept the first row to get specific year number by removing "./" string,at last save the specific year number in LogYear<br /> LogYear=`expr ${LogFileName#*"./"} |cut -d "-" -f1`<br /> #intercept the second row to get specific month saved in LogMonth<br /> LogMonth=`expr ${LogFileName} | cut -d "-" -f2`<br /> #intercept the third row to get specific day saved in LogDay<br /> LogDay=`expr ${LogFileName} |cut -d "-" -f3`<br /> echo "LogYear="${LogYear}<br /> echo "LogMonth="${LogMonth}<br /> echo "LogDay="${LogDay}</p> <p> if((LogYear < NowGetYear))<br /> then<br /> rm -f ${LogFileName}<br /> echo "LogYear "${LogYear}"<"${NowGetYear}<br /> echo "rm "${LogFileName}" succeed!"<br /> echo<br /> continue<br /> fi</p> <p> if((LogMonth < NowGetMonth))<br /> then<br /> rm -f ${LogFileName}<br /> echo "LogMonth "${LogMonth}"<"${NowGetMonth}<br /> echo "rm "${LogFileName}" succeed!"<br /> echo<br /> continue<br /> fi</p> <p> if((LogDay+3 < NowGetDay)) #rm log files with date beyond three days<br /> then<br /> rm -f ${LogFileName}<br /> echo "LogDay+3 "`expr ${LogDay} + 3`"<"${NowGetDay}<br /> echo "rm "${LogFileName}" succeed!"<br /> echo<br /> continue<br /> fi<br /> echo<br /> done<br />