1.函数位置参数与脚本程序的位置参数
- 函数的位置参数:在函数后面加的位置参数
- 脚本程序的位置参数:在执行脚本程序时,后面加的参数
$
if [$
echo "usage: 'basename $0' par1 par2 par3"
exit
fi
fun3()
{
echo "$(($1 * $2 * $3))"
}
result='fun3 2 3 4'
echo "result is : result"
result is : 24
-------------------------------------------------------------------------
fun3()
{
echo "$(($1 * $2 * $3))"
}
result='fun3 $1 $2 $3'
echo "result is : result"
result is : 24
-------------------------------------------------------------------------
fun3()
{
echo "$(($1 * $2 * $3))"
}
num1=$1
num2=$2
num3=$3
result='fun3 num1 num2 num3'
echo "result is : result"
result is : 24