说明：需在脚本目录下创建文件log_arg.txt，第一列为日志路径，第二列日志名，第三列至少要保存的日志文件数量，第四列删除多少天之前的日志。

log_arg.txt 文件内容：

# first: log dir

# secound: log name

# third: log file not less than

# forth: delete log how many days ago

/glassfish/dm02n02s02/dm02c03s02/logs server.log_\* 20 7

/glassfish/dm02n02s02/dm02c03s04/logs server.log_\* 20 7

脚本rm_log.sh内容：

#!/bin/bash

dn=`dirname $0`

cd $dn

awk '/^[^#]/' log_arg.txt | while read log

do

logarr=($log)

len=${#logarr[@]}

dir=${logarr[0]}

fn=${logarr[1]}

cnt=${logarr[2]}

dt=${logarr[3]}

if [ $len != 4 ]; then

echo "Line \"$log\" is error"

continue

fi

[[ ! -d $dir ]] && echo "$dir is not exist" && continue

[[ ! "$cnt" =~ ^[0-9]+$ ]] && echo "$cnt is not a number" && continue

[[ ! "$dt" =~ ^[0-9]+$ ]] && echo "$dt is not a number" && continue

acnt=`find $dir -type f -name $fn -ctime -$dt | wc -l`

echo "$dir $acnt $cnt"

if [ $acnt -ge $cnt ] ; then

echo "Now delete $dt days ago logs in $dir. Log files $fn not less than $cnt."

find $dir -type f -name $fn -ctime +$dt | xargs rm -f

fi

done