linux中如何显示行数据类型

#!/bin/bash

# 检查参数个数
if [ "$#" -ne 1 ]; then
    echo "Usage: $0 <filename>"
    exit 1
fi

# 检查文件是否存在
if [ ! -f "$1" ]; then
    echo "File not found!"
    exit 1
fi

# 读取文件的每一行
while IFS= read -r line; do
    # 尝试将行作为整数处理
    if [[ $line =~ ^-?[0-9]+$ ]]; then
        echo "$line is an integer"
    # 尝试将行作为浮点数处理
    elif [[ $line =~ ^-?[0-9]+(\.[0-9]+)?$ ]]; then
        echo "$line is a float"
    # 尝试将行作为布尔值处理
    elif [[ $line =~ ^(true|false)$ ]]; then
        echo "$line is a boolean"
    # 其他情况视为字符串
    else
        echo "$line is a string"
    fi
done < "$1"

chmod +x detect_data_type.sh

./detect_data_type.sh yourfile.txt