每小时扫描指定日志目录，文件超过100M后直接清空处理，作为运维的一个临时手段使用。
源码主要由两个函数构成： reviewLogs() 判断日志大小，并做清空处理；getdir() 判断是目录还是文件，如果是目录则进行迭代查找； 使用方法： 在~/folder_sj目录(自行重命名，shell源码中也要做同名替换)下新建review_logs.sh并贴入源码shell源码倒数第3行，配置需要扫描的路径，目录中所有的文件都会被扫描和处理，请注意不止是*.logreviewLogs()函数中 if [ $filesizeM -gt 100 ] 中的100是文件大小，单位是M，数值根据需要修改即可配置完成后查看日志是否定时输出，日志所在路径是LOG=~/folder_sj/review_logs_${TIMESTAMP}.log。 Shell源码
#!/bin/bash TIMESTAMP=`date +%Y%m` LOG=~/folder_sj/review_logs_${TIMESTAMP}.log echo "Start to review all log files at `date`." >>${LOG} function reviewLogs(){ filename=$1 filesize=`ls -l $filename | awk '{ print $5 }'` filesizeM=`echo "sclae=2; $filesize/1024/1024" | bc` if [ $filesizeM -gt 100 ] then echo "$filename is too bigger!!" >>${LOG} echo '' > $filename filesize1=`ls -l $filename | awk '{ print $5 }'` filesizeM1=`echo "sclae=2; $filesize1/1024/1024" | bc` echo "now the file size is ${filesizeM1} !!" >>${LOG} echo "===========================" >>${LOG} fi } function getdir(){ for element in `ls $1` do dir_or_file=$1"/"$element if [ -d $dir_or_file ] then getdir $dir_or_file else reviewLogs $dir_or_file fi done } getdir '/opt/apache-tomcat-7.0.70_app/logs' echo "Stop to review all log files at `date`." >>${LOG} echo "============================================================================" >>${LOG}
123456789101112131415161718192021222324252627282930313233343536373839 Crontab配置源码# /etc/crontab: system-wide crontab # Unlike any other crontab you don't have to run the `crontab' # command to install the new version when you edit this file # and files in /etc/cron.d. These files also have username fields, # that none of the other crontabs do. SHELL=/bin/sh PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin # m h dom mon dow user command 00 */1 * * * root /root/folder_sj/review_logs.sh1234567891011
