删除日志文件的shell

#!/bin/bash
# Deletes all but the newest 5 files to keep Tokyo Tyrant ulogs from diractor
#==================================
#
#Author: guolimin
#
#Email: [e-mail]#
#Data:  2009.10.01
#
# Http://accepting.sharera.com
#DOWNLOADS="/home/medialib/download"
#==================================
 logdir="/home/tsaip/guolimin/"
 mydir=`ls -t $logdir|grep  ulog`
 count=`ls -l|grep ulog|wc -l`
 end=$((count-5))
 it=0
 for file in $mydir
     do 
         if [ $it -gt $end ]
         then
             echo file $it will be deleted: $logdir$file
             rm -rf $file
         fi
         it=$((it+1))
     done

 

 

 

第二种通过find操作更加简单

 

find /opt/ibm/logs -ctime +6 -name "*msgflow_info.log*" -exec rm -rf {} /;

 

ps：http://blog.vfocus.net/archives/000380.html

      http://hi.baidu.com/istang/blog/item/0a01191257b6dc5df919b855.html