crontab 日志备份定时任务

时间：2023-03-08 20:54:56
crontab 日志备份定时任务

-l选项，查看当前用户的所有定时任务：

[xiluhua@vm-xiluhua][/home]$ crontab -l

* * * * * /home/xiluhua/shell_script/logbk.sh

-e选项，创建或修改当前用户的定时任务：

[xiluhua@vm-xiluhua][/home]$ crontab -e

crontab: no changes made to crontab

-u选项，查看（-l）,修改（-e）指定用户的定时任务，（仅root管理员可用）：

[root@vm-xiluhua][/home]$ crontab -u xiluhua -l

* * * * * /home/xiluhua/shell_script/logbk.sh

-r选项，删除定时任务

配置文件：

[xiluhua@vm-xiluhua][~/shell_script]$ cat logbk.conf

logbk.sh  /home/xiluhua/auto log

代码：

[xiluhua@vm-xiluhua][~/shell_script]$ cat logbk.sh

#!/bin/bash

#author:xiluhua

#since:

#####################################################################

# $: name of log*.sh to execute log-backuping

# $: size triggers log backuping

# $: directories need to log-backup

# $: postfix with which log file will be backuped

#####################################################################

v_name=$

v_name=${v_name##*/}

v_exce="exception@${v_name}"

v_nohup="/home/xiluhua/shell_script/nohup_logbk.out"

v_conf="/home/xiluhua/shell_script/logbk.conf"

v_date=".$(date +%Y%m%d'_'%H%M%S)"

declare -i v_isConfiged= #0true1false

[ ! -s $v_conf ] && echo "exception@conf.error:please check if $v_conf is available!" >> $v_nohup && exit 

while read -r f1 f2 f3 f4

do

        if [[ -n $f1 && $f1 == $v_name ]]

        then

                [ -z "$f2" ] && echo "$v_exce@2:size triggers log backuping can not be null" >> $v_nohup && exit

        [ -z "$f3" ] && echo "$v_exce@3:directories need to log-backup can not be null" >> $v_nohup && exit

        [ -z "$f4" ] && echo "$v_exce@4:log postfix can not be null" >> $v_nohup && exit

        v_size=$f2

        v_dir=$f3

                v_postfix=$f4

                v_isConfiged=

        break

        fi

done<"$v_conf"

[ $v_isConfiged ==  ] && echo "$v_exce@1:not appropriate configed" >> $v_nohup && exit 

v_line=""

for (( i=;i<;i++))

do

        v_line=$v_line"="

done

echo $v_line >> $v_nohup

echo "pid:"$$ >> $v_nohup

echo "v_size:"$v_size"M" >> $v_nohup

echo "v_dir:"$v_dir >> $v_nohup

echo "v_postfix:"$v_postfix >> $v_nohup

IFS=";"

echo "=== dirs listening ===" >> $v_nohup

for dir in $v_dir

do

        echo "this.dir:"$dir >> $v_nohup

        for postfix in $v_postfix

        do

                echo "find $dir -size +${v_size}M -name '*.$postfix'" >> $v_nohup

                #find $dir -size +${v_size}M -name "*.$postfix" -exec gzip {} \;

                for file in $(find $dir -size +${v_size}M -name "*.$postfix")

                do

                        echo "log files to be backuped:" >> $v_nohup

                        echo $file >> $v_nohup

                        gzip -c $file > ${file}${v_date}.gz && echo > $file

                done

                #find $dir -size +${v_size}M -name "*.$postfix" -exec gzip {} \;

        done

done

exit

相关文章