bash shell中创建函数

function name {
    commands
}

name() {
    commands
}

function func1 {
    echo "First Example"
}
echo 'Start!'
func1

func2(){
    echo "Second Example"
}
func2

function func3 {
    echo "First parameter: $1"
    echo "Second parameter: $2"
    echo "Third parameter: $3"
}
func3 one two three