#!/bin/bash
##############################################################
# File Name: /sources/logcut.sh
# Version: V1.0
# Author: sanshi
# Organization: https://www.9133w.cn
# Created Time : 2019-03-13 17:12:14
# Description:
##############################################################
# begin parallel excutes
mkfifo ./$$.fifo && exec 913<> ./$$.fifo && rm -f ./$$.fifo
for i in {1..5}
do
        echo >& 913
done
# date day
dateNow=`date +%Y%m%d`
# date 30 days ago
dateOld=`date -d '7 days ago' +%Y%m%d`
#date precise
dateExact=`date +%Y%m%d%H%M%S`
# project path
logDir="/data/logs"
[ ! -d $logDir ] && \
mkdir -p $logDir && \
echo "there no logs to backup!" && exit 3
# baklog save path
logBakPath="/data/bak_logs"
[ -d $logBakPath ] || mkdir -p $logBakPath

#backup and split logs now
cd $logDir
for pro in $(ls *.log)
do
        read -u 913
        {
                proName=${pro%.*}
                if [ -s $pro ]
                then
                        [ -d $logBakPath/$proName ] || mkdir -p $logBakPath/$proName
                        [ -f $logBakPath/$proName/${proName}-${dateNow}.txt ] && \
                        cp $pro $logBakPath/$proName/${proName}-${dateExact}.txt
                        [ -f $logBakPath/$proName/${proName}-${dateNow}.txt ] || \
                        cp $pro $logBakPath/$proName/${proName}-${dateNow}.txt
                        sleep 1
                        [ -f $logBakPath/$proName/${proName}-${dateOld}.txt ] && rm -f $logBakPath/$proName/${proName}-${dateOld}.txt
                        echo > $pro
                fi
                echo >& 913
        }&
done
wait
exec 913>&-
exec 913<&-
exit 0