如何在shell脚本中进行浮点比较

Question

#! /bin/sh
echo "Enter the first number: "
read a 
echo "Enter the second number: "
read b
if [ $a -eq $b ]
then 
echo "$a is larger Number"
else
echo "$b is larger Number"
fi

Answer 1

使用基本计算器命令bc怎么样？

#! /bin/sh
echo "Enter the first number: "
read a
echo "Enter the second number: "
read b
if (( $(echo "$a > $b" |bc -l) )); then
echo "$a is larger Number"
else
echo "$b is larger Number"
fi