You can do this with the backtick operator (see Listing 9). 这可以使用反引号运算符来实现(请参见 清单 9)。
Please note you get the same results if you just use the backtick operators, as shown below. 注意,仅使用后撇号操作符也会得到相同的结果,如下所示。
If you've been doing any shell or Perl scripting at all, you know you can capture the output of other commands inside backtick operators. 如果您编写过 shell 或 Perl 脚本,您就知道可以在反撇号操作符内部捕捉其他命令的输出。
词组短语
短语
Backtick Clock 倒着走的时钟;任时光飞逝;倒着走时钟
英英字典
剑桥英英字典
the symbol ` on a keyboard, used mainly in writing computer programs