#!/bin/bash

echo 示例用法1:./log_truncate.sh 18/Sep/2017 20/Sep/2017 access_zl.log"(截取指定日期之间的日志记录,日期请不要跨月)"

echo 示例用法2:./log_truncate.sh 18/Sep/2017 10:13:06 18/Sep/2017 14:15:08 access_zl.log"(截取指定时间内的日志记录,日期请不要跨月)"

count=$# #参数个数

first_day=`echo $1|cut -d / -f 1`

var=$1

month=${var#*/}

#echo $count

#echo $first_day

#echo $second_day

#echo $month

rm logtruncatebytime.text -rf

if [ $count -eq 3 ];then

second_day=`echo $2|cut -d / -f 1`

int=$first_day

#echo $int

while(( $int<=$second_day ))

do

str=$int"/"$month

#echo $str

cat $3|grep $str>>"logtruncatebytime.text"

let "int++"

done

elif [ $count -eq 5 ];then

begin_str=$1":"$2

#echo $begin_str

end_str=$3":"$4

#echo $end_str

begin_line=$(cat $5|grep -n $begin_str|awk -F ':' '{print $1}'|head -n1)

#echo beginstr=$begin_str begin_line=$begin_line

end_line=$(cat $5|grep -n $end_str|awk -F ':' '{print $1}'|tail -n1)

#echo end_str=$end_str end_line=$end_line

if [ -z "$begin_line" ];then

echo "你输入的开始时间不存在，请重新输入!"

exit

elif [ -z "$end_line" ];then

echo "输入的结束时间不存在，请重新输入!"

exit

fi

cat $5 |head -n $end_line|tail -n +$begin_line >>"logtruncatebytime.text"

else

echo "输入格式错误，请重新按照示例用法输入!"

exit

fi

zip -r logtruncatebytime.zip logtruncatebytime.text

if [ -f "./logtruncatebytime.zip" ];then

echo $(cat logtruncatebytime.text|wc -l) 条记录已经写入到logtruncatebytime.zip文件中......

rm logtruncatebytime.text -rf

else

echo "程序执行失败，请重新检查输入再执行......"

fi