Shell 减法
tags: 数学
文章目录
1. 数字相减
subtraction.sh
#!/usr/bin/env bash printf "Enter the First Number: " read -r a printf "Enter the Second Number: " read -r b echo "$a - $b = $((a - b))"
执行：
$ bash subtraction.sh Enter the First Number: 3 Enter the Second Number: 4 3 - 4 = -1 $ bash subtraction.sh Enter the First Number: 5 Enter the Second Number: 3 5 - 3 = 2
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