linux-tutorial/codes/shell/示例脚本/脚本函数/使用命令行中传递的参数.sh

#!/bin/bash

# using a global variable to pass a value

function db1 {
    # $1和$2 不能从命令行中传递，只能调用函数时，手动传递
    echo $[ $1 * $2 ]
}

if [ $# -eq 2 ]
then
    value=`db1 $1 $2`
    echo "The result is $value"
else
    echo "Usage: badtest1 a b"
fi