shell脚本----周期压缩备份日志文件

#!/bin/bash
#author:xiami
#date:20170907
#description: compress files of a specified mode and delete logs before a particular date
#version:v0.1

strategy_logs_path="/root/apps/myapp/log"
date=$(date +%Y%m%d)


#------------初始化函数默认参数----------
init_argv(){  #example:init_argv -d 4 -m cjf -r 5 打包压缩近四天及当天日志，压缩模式cjf，删除五天前日志
    compress_date=$(date +%Y%m%d)
    backup_mode="czf"
    del_days_num=3
    backup_path="/root/apps/logs_backup"
    line=$(ps -ef |grep "ssh-agent"|awk ‘{if($0!~/grep ssh-agent/)print $0}‘|wc -l)
    while getopts d:m:r: opt
    do
        case $opt in
        d) compress_days="$OPTARG" ;;
        m) backup_mode="$OPTARG" ;;
        r) del_days_num="$OPTARG" ;;
       \?) echo "Usage: `basename $0` [d|m|r]"
           echo "-d ‘Integer‘ (tar & compress Integer day logfile)"
           echo "-m ‘czf|cjf‘ (mode)"
           echo "-r ‘Interger‘ (remove files Integer days ago)"
           exit 1 ;;
        esac
    done
    if [ ! -d "$backup_path" ];then
        mkdir -p $backup_path
    fi
#    if [ line -lt 1 ];then
#        echo "Not running ssh-agent"
#        exit 1
#    fi
}
#------------打包并压缩日志文件操作函数--------------------
tar_compress_log(){    #参数1：压缩日期  参数2：压缩备份模式
    local compress_date="$1"
    local backup_mode="$2"
    cd "$strategy_logs_path"
#    ls . -name "*$date*.log"|xargs tar $backup_mode "$date.tar.gz"   #压缩当天日志
    if [ "$backup_mode" == ‘czf‘ ];then
        ls | grep ".*[0-9]\{8\}.*\.log$"|grep ".*"$compress_date".*"|xargs tar $backup_mode "$backup_path/"$1".tar.gz"
    elif [ "$backup_mode" == ‘cjf‘ ];then
        ls | grep ".*[0-9]\{8\}.*\.log$"|grep ".*"$compress_date".*"|xargs tar $backup_mode "$backup_path/"$1".tar.bz2"
    else
        echo "tar mode error";exit 2
    fi
}
#------------打包并压缩N天前到当前日期范围的日志文件----------
compress_range_date(){     #参数1：压缩备份天数 参数2：压缩备份模式
    local dates="$date"
    local compress_days="$1"
    local backup_mode="$2"
    if [[ ! -z "$compress_days" && "$compress_days" -ne 0 ]];then
        for i in `seq 1 "$compress_days"`;do
               dates=$(date -d "-$i day" +%Y%m%d)
            #   n=$(echo $dates|awk ‘{print NF}‘)
               tar_compress_log "$dates" "$backup_mode"
        done
    else
        tar_compress_log "$dates" "$backup_mode"
    fi
}
#------------每周五打包当周压缩文件并在打包成功后删除单个压缩文件------------
tar_file(){
    weekday=$(date +%u)
    if [ "$weekday" -eq 5 ];then
        cd "$backup_path"
        ls|xargs tar cf "$date-Fri-logs.tar" && rm *.tar.?z*
    fi
}
#-----------删除(del_log_days)天前日志文件(根据mtime)---------
delete_days_log1(){   #参数1：del_days_num
    local del_days_num="$1"
    cd "$strategy_logs_path"
    find . -type f -mtime +$del_days_num |grep ".*[0-9]\{8\}.*\.log"|xargs rm aa -rf  #删除操作，请谨慎
}
#----------删除(del_log_days)天前日志文件（根据log文件名）----
delete_days_log2(){    #参数1：del_days_num
    local del_days_num="$1"
    cd "$strategy_logs_path"
    local num=$(ls |grep ".*[0-9]\{8\}.*\.log$" |grep -o "[0-9]\{8\}"|awk ‘!day[$0]++‘|wc -l)
    local files=$(ls |grep ".*[0-9]\{8\}.*\.log$" |grep -o "[0-9]\{8\}"|awk ‘!day[$0]++‘)
    if [ ! -z "$num" ];then
        local field=""
        for i in  `seq 1 "$num"`
        do
            field=$(echo $files|awk ‘{print $v}‘ v=$i)
            if [ "$field" -lt $(date -d "-$del_days_num day" +%Y%m%d) ];then
                    ls *$field* |grep   ‘.*[0-9]\{8\}.*\.log$‘|xargs rm aa -rf
            fi
        done
    fi
}
#-----------上传到日志服务器-------------
upload_tgz(){
    scp $backup_path/$date.tar.gz 192.168.119.133:/opt/ && rm $backup_path/$date.tar.gz
   #scp $backup_path/$date*-logs.tar 192.168.119.133:/opt/ && rm $backup_path/$date*-logs.tar
}
#-----------main-------------------------
main(){
    init_argv $argv
    compress_range_date "$compress_days" "$backup_mode"
    delete_days_log2 $del_days_num
    tar_file
#    upload_tgz
}
#----------执行部分----------------------
argv=""
until [ "$#" -eq 0 ];do
            argv="$argv $1"
            shift
done
main $argv