shell脚本报错：value too great for base (error token is "08")

刺骨的言语ヽ痛彻心扉 2021-09-23 21:22 609阅读 0赞

在shell开发中，会遇到将10以内的数字前面加0的情况，例如按小时分区执行hive脚本，具体代码如下：

#!/bin/sh
    
    START_DAY=$1
    END_DAY=$2
    FLAG_DAY=${START_DAY}
    START_HOUR=$3
    END_HOUR=$4
    
    executeHive() { 
      while :
      do
        local STAT_HOUR=00
        local FLAG_HOUR=23
        local START_DAY=$(date -d "$START_DAY 1day" +%Y%m%d)
        local STAT_DAY=`date -d "${START_DAY} -1 day" +%Y%m%d`
        
        # 判断执行日期是否为开始日期或结束日期
        if [ ${STAT_DAY} -eq ${FLAG_DAY} ]; then
          STAT_HOUR=${START_HOUR}
        elif [ ${STAT_DAY} -eq ${END_DAY} ]; then
          FLAG_HOUR=${END_HOUR}
        fi
       
        while :
        do   
          printf "[INFO] `date '+%F %T'` current execute partition is dt=${STAT_DAY} hour=${STAT_HOUR}\n"
          
          exitCode=$?
          if [ $exitCode -ne 0 ];then
            printf "[ERROR] `date '+%F %T'` hivesql execute ${SOL_FILE} is failed!!!\n"
            exit $exitCode
          else
            printf "[INFO] `date '+%F %T'` hivesql ${STAT_DAY} ${STAT_HOUR} data execute success！！！\n" 
          fi
          
          # 因为小时小于10时前面有0，shell脚本会认为是八进制数字，所以要转为十进制数字
          #STAT_HOUR=$((10#$STAT_HOUR+1))
          STAT_HOUR=$(($STAT_HOUR+1))
          
           # 判断小时是否小于10
          if [ ${STAT_HOUR} -lt 10 ]; then
            STAT_HOUR=0${STAT_HOUR}
          fi
          
          # 如果执行小时大于设置的结束小时，退出循环
          if [ ${STAT_HOUR} -gt ${FLAG_HOUR} ]; then
            break;
          fi
        
        done
        
        # 判断执行日期是否等于结束日期，等于则退出循环
        if [ ${STAT_DAY} -eq ${END_DAY} ]; then
          break;
        fi
        
      done
    }
    
    if [ ${START_DAY} -gt ${END_DAY} ]; then
      printf "[ERROR] `date '+%F %T'` --start-day:${START_DAY} greater than --end-day:${END_DAY}\n"
      exit 1
    elif [ ${START_HOUR} -ge 24 ] || [ ${START_HOUR} -lt 0 ] || [ ${END_HOUR} -ge 24 ] || [ ${END_HOUR} -lt 0 ]; then
      printf "[ERROR] `date '+%F %T'` --start-hour:${START_DAY} or --end-hour:${END_DAY} is not 00-23 \n"
      exit 1
    else
      executeHive
      printf "[INFO] `date '+%F %T'` hivesql ${START_DAY} to ${END_DAY} data execute success！！！\n"
    fi

当执行命令：`sh houeTest.sh 20200202 20200203 19 23`会报如下错误：  
`houeTest.sh: line 38: 08: value too great for base (error token is "08")`  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2x6NjM2Mw_size_16_color_FFFFFF_t_70]  
解决方法：将代码第38行改为第37行  
`STAT_HOUR=$(($STAT_HOUR+1))`改为：`STAT_HOUR=$((10#$STAT_HOUR+1))`就不会报错了

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2x6NjM2Mw_size_16_color_FFFFFF_t_70]: /images/20210923/5ec3a970264e44b4a300a4805153e209.png