一、日志文件样式
二、目标
1、备份压缩.log结尾&&时间样式为“date +%Y%m%d”的日志文件(如：20170912、20160311等)
2、可指定压缩范围（N天前至当天）：如：今天、昨天（date -d "-1 day" +%Y%m%d）至今天、前天至今天
压缩命名格式为：日期.tar.gz(或：日期.tar.bz2)，压缩N天范围内文件后将会生成N个压缩包
3、可指定压缩模式（二选一）：tar czf 或 tar cjf
4、可指定删除范围：删除N天前的日志文件，如：今天为20170912，删除3天前日志，即删除20170908及其以前的日志文件
5、每周五（不一定周五，可在脚本中指定周几打包）将压缩文件打包（打包成功后删除压缩文件），并上传到日志服务器，上传成功后删除打包文件
6、默认备份当天日志文件，压缩模式为“czf”，删除三天前日志文件
三、脚本内容
#!/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