自动日志清理脚本程序

#!/bin/sh

########################################################## #created by ydds      # #date 2011-4-25       # #function log clear default save 7 days logs   # #when hard disk space achieve 80%, automatic save 3 days # #when hard disk space achieve 90%,save only LOG today   # #when only today log hard disk space achieve >95%  # #   clear today log      # ########################################################## set -x

oldboyWarnValue=80

oldboyCriticalValue=90 oldboyCC=95 nohupFlag=0

# $1 must be directory

if [ $# -ne 2 ]||[  -z $1 ]||[ ! -d $1 ];then         echo "Uage:logClear /home/oldboy/apachelogs /dev/xvda1"  exit 1 fi

#clear log path

logPath=$1

devstr=$(df|awk '/\//{print $1}'|sed -n '/\//p')

echo "${devstr}"|grep -q "$2" [ $? -ne 0 ]&&exit 1

# hard disk name

oldboyName=$2

scriptLog=/server/script/clearLog.log

#clear nohuplog

clearNohupLog() {  if [ ${nohupFlag} -ne 1 ];then    # check nulup.log >1G clear          fileNohupLog="${logPath}/../nohup.log"          NohupSize=$(du ${fileNohupLog}|awk '{print $1/1024/1024}'|awk -F "." '{print $1}')   echo "check nohup.log size: $(du -h ${fileNohupLog}|awk '{print $1}')">>${scriptLog}          if [ -f ${fileNohupLog} ];then                  if [ ${NohupSize} -ge 1 ]||[ $1 -eq 1 ];then                          echo "">${fileNohupLog}     if [ $? -eq 0 ];then      echo "clear nohup.log ok!">>${scriptLog}     fi                   fi          fi  fi }

#hard disk used

oldboyUsed=$(/bin/df ${oldboyName}|tail -1|awk '{print $5}'|awk -F "%" '{print $1}')

echo "[$(date +%Y-%m-%d\ %H:%M:%S)]check hard disk used start....">>${scriptLog}

echo "check current hard disk space used ${oldboyUsed}%">>${scriptLog}

#clear nohup.log >warning

if [ ${oldboyUsed} -ge ${oldboyWarnValue} ];then  echo "hard disk used ${oldboyUsed}% > ${oldboyWarnValue}%,start clear nohup.log..">>${scriptLog}  clearNohupLog 1  nohupFlag=1 fi

if [ ${nohupFlag} -eq 1 ];then

 #hard disk used  echo "after deal nohup.log ,check hard disk again...">>${scriptLog}  oldboyUsed=$(/bin/df ${oldboyName}|tail -1|awk '{print $5}'|awk -F "%" '{print $1}') fi

#save 7,3 days logs

clearnDayLogs() {  # cd tmp directory  cd /tmp

 if [ $1 -ne 1 ];then

  if [ -d ${logPath} ];then    cd ${logPath}    find . -type f -mtime +$1 |xargs rm -f        if [ $? -eq 0 ];then                          echo " clear ${logPath} logs $1 ago days logs successfully!">>${scriptLog}                  else                          echo " clear ${logPath} logs $1 ago days logs fail!">>${scriptLog}                  fi    fi  else   #clear nohup.log          clearNohupLog 1

  clearFileNameArr=($(ls ${logPath}|awk -F "." 'NF==3{print $0}'))

  # clear file name is not blank   if [ -n "${clearFileNameArr}" ];then    echo "|">>${scriptLog}    for((i=0;i<${#clearFileNameArr[@]};i++))           do     if [ ${i} -eq 0 ];then      echo "clear file------------------start--------------------------->">>${scriptLog}     fi          # cd  this directory                   cd ${logPath}     if [ -f "${logPath}/${clearFileNameArr[$i]}" ];then                    find . -type f -name ${clearFileNameArr[$i]} |xargs rm -f     fi

    if [ $? -eq 0 ];then

     echo "${clearFileNameArr[$i]}">>${scriptLog}     fi           done    echo "clear file------------------------- end -------------------->">>${scriptLog}    echo "|">>${scriptLog}   else    echo "☆☆☆☆☆☆ Not files 1 day ago ☆☆☆☆☆☆">>${scriptLog}   fi   afterClearoldboyUsed=$(/bin/df ${oldboyName}|tail -1|awk '{print $5}'|awk -F "%" '{print $1}')   echo "clear ${logPath} logs ${1} ago days logs successfully!">>${scriptLog}  fi }

 

 

 如果你把握不好该脚本带来的误删除的风险，请慎用。

 

#when today log save ,check hard disk used >80%,so  clear today logs clearTodayLog() {  oldboyUsedTmp=$(/bin/df ${oldboyName}|tail -1|awk '{print $5}'|awk -F "%" '{print $1}')  echo "clear today log start ...">>${scriptLog}  #todayFileArr=($(ls ${logPath}))  todayFileArr=($(find ${logPath} -type f|awk -F "/" '{print $NF}' ))  echo "start save current logs tail 300 ..">>${scriptLog}  echo "|">>${scriptLog}  echo "dealing currnet logs name*********start*************>>>>">>${scriptLog}  for((i=0;i<${#todayFileArr[@]};i++))  do    cd ${logPath}         #get tail 300 --> tmp file    tail -300 ${todayFileArr[$i]}>/tmp/tmpydds       #check file exist again save tail 300 --- this file

   if [ -f "${logPath}/${todayFileArr[$i]}"  ];then

           find . -type f -name ${todayFileArr[$i]} -exec cat /tmp/tmpydds >${logPath}/${todayFileArr[$i]} \;     if [ $? -eq 0 ];then      echo " ${todayFileArr[$i]}----- ok!">>${scriptLog}     else     echo " ${todayFileArr[$i]}----- fail!">>${scriptLog}     fi    fi  done   echo "dealing currnet logs name********* end *************>>>>">>${scriptLog}  echo "|">>${scriptLog}  if [ $? -eq 0 ];then    echo "clear today log successfully!">>${scriptLog}     else    echo "clear today log fail!">>${scriptLog}  fi }

wflag=0 cflag=0 flag=0 count=0

#clear nohup.log #clearNohupLog 0

while true

do         oldboyUsed=$(/bin/df ${oldboyName}|tail -1|awk '{print $5}'|awk -F "%" '{print $1}')    #not first and hard disk < warning value  break         [ ${count} -ne 0 ]&&[ ${oldboyUsed} -lt ${oldboyWarnValue} ]&&break

 count=1

  ################next         if [ ${oldboyUsed} -ge ${oldboyWarnValue} ];then   case ${cflag} in                         1)                                 clearTodayLog                                 cflag=2                         ;;                         2)                                 echo "baojing---------->">>${scriptLog}                                 break                         ;;                 esac

                case ${wflag} in

                        1)                                 clearnDayLogs 1                                 wflag=2                         ;;                         2)                                 clearTodayLog                                 wflag=3                         ;;                         3)     echo "baojing---------->">>${scriptLog}                                 break                         ;;                 esac          fi

######################first

        if [ ${wflag} -eq 0 ]&&[ ${cflag} -eq 0 ];then

  #when >95% clear today

  if [ ${oldboyUsed} -ge ${oldboyCC} ];then

   #clear 1 ago log

   clearnDayLogs 1

   #clear today log

   clearTodayLog      break  

                #when hard disk is used 90% is Critical  today log only save

                elif [ ${oldboyUsed} -ge ${oldboyCriticalValue} ];then                         echo "${oldboyName} current used ${oldboyUsed}%>= ${oldboyCriticalValue}% is Critical!">>${scriptLog}                         cflag=1                         clearnDayLogs 1

                #when hard disk is used ${oldboyWarnValue}% is Warning automatic save 3 days

                elif [ ${oldboyUsed} -ge ${oldboyWarnValue} ];then                         echo "${oldboyName} current used ${oldboyUsed}%>= ${oldboyWarnValue}% is Warnning!">>${scriptLog}                         wflag=1                         clearnDayLogs 3

                #when hard disk is used lt 80% the logs oldboy is normal.

                else                         echo "${oldboyName} current used ${oldboyUsed}% is Normal!">>${scriptLog}                         clearnDayLogs 7                         break                 fi         fi

        flag=1

done

#when clear all log oldboy used

oldboyUsed=$(/bin/df ${oldboyName}|tail -1|awk '{print $5}'|awk -F "%" '{print $1}')

#after deal log check disk used

if [ ${oldboyUsed} -ge ${oldboyCC} ];then

 echo "oldboy used ${oldboyUsed}% is Critical Critical!">>${scriptLog}

elif [ ${oldboyUsed} -ge ${oldboyCriticalValue} ];then

  echo "oldboy used ${oldboyUsed}% is Critical!">>${scriptLog}

elif [ ${oldboyUsed} -ge ${oldboyWarnValue} ];then

  echo "oldboy used ${oldboyUsed}% is Warning!">>${scriptLog}

else

 echo "oldboy used ${oldboyUsed}% is Normal!" fi

echo "check hard disk used end!">>${scriptLog}

 

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