#!/bin/sh
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# 输出存储信息
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echo -en "Content-type: text/html; charset=utf-8\n\n"
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#*****************************************************
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source ../bin/env.sh
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db="../bin/db"
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jsoner="../bin/jsoner"
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path="/work/data"
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df_output=$(df -h $path | tail -n 1)
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# 解析输出字段
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filesystem=$(echo "$df_output" | awk '{print $1}')
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used=$(echo "$df_output" | awk '{print $3}')
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available=$(echo "$df_output" | awk '{print $4}')
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mounted_on=$(echo "$df_output" | awk '{print $6}')
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# 提取数值和单位
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used_value=$(echo "$used" | grep -oE '[0-9.]+')
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used_unit=$(echo "$used" | grep -oE '[A-Za-z]+')
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available_value=$(echo "$available" | grep -oE '[0-9.]+')
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available_unit=$(echo "$available" | grep -oE '[A-Za-z]+')
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if [[ "$used_unit" = "K" || "$used_unit" = "" ]]
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then
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used_value="0"
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used_unit="M"
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fi
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if [[ "$used_unit" = "G" ]]
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then
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# 使用awk替代bc进行乘法计算，%g自动处理小数位
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used_value=$(awk -v val="$used_value" 'BEGIN{printf "%g", val * 1024}')
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used_unit="M"
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used="$used_value$used_unit"
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fi
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if [[ "$available_unit" = "K" || "$available_unit" = "" ]]
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then
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available_value="0"
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available_unit="M"
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fi
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if [[ "$available_unit" = "G" ]]
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then
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# 使用awk替代bc进行乘法计算
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available_value=$(awk -v val="$available_value" 'BEGIN{printf "%g", val * 1024}')
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available_unit="M"
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available="$available_value$available_unit"
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fi
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# 确保单位一致
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if [ "$used_unit" != "$available_unit" ]; then
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echo "错误：Used 和 Available 的单位不一致"
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exit 1
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fi
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# 计算 Size 字段的值（使用awk替代bc加法）
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size_value=$(awk -v u="$used_value" -v a="$available_value" 'BEGIN{printf "%g", u + a}')
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size="${size_value}${used_unit}" # 保留单位
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# 计算 Use% 字段的值（使用awk替代bc除法和乘法，保留两位小数）
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use_percent_value=$(awk -v u="$used_value" -v s="$size_value" 'BEGIN{printf "%.2f", (u / s) * 100}')
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use_percent="${use_percent_value}%"
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# 输出解析结果
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echo "{\"size\":\"$size\",\"used\":\"$used\",\"available\":\"$available\",\"use%\":\"$use_percent\"}"
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