command substitution meaning in Chinese
命令替换，使得可以捕获一个命令的输出而在另一个命令中替换它。
Examples
- Alternatively you can use the octal form of the control code , " - 033 " , but the prompt setting doesn t understand this syntax itself , so you have to use " echo " and command substitution , as shown in the next example
当然也可以使用八进制格式的控制码， " 033 " ，但是prompt设置并不能够理解这个语法本身，所以您得使用" echo "和命令替换，如下例所示：