Ubuntu中的Ruby解释器问题

Question

运行正常：

C:\>ruby -00 -e 'a= gets; puts a ;puts "here is: #{$/.inspect}"'
Hi #[pressed ENTER]
[pressed ENTER]
Hi # <~~ here Hi came as the output, as expected.

here is: "\n\n"  #<~~ here Hi came as the output, as expected.

C:\>

但是当我在Ubuntu机器上发生这种情况时，我感到很惊讶：

@ubuntu:~$ ruby -00 -e 'a= gets; puts a ;puts "here is: #{$/.inspect}"'
> hi # [pressed ENTER]
> [pressed ENTER]
> hi #[pressed ENTER]
> ^C
@ubuntu:~$

有什么建议可以让它在Ubuntu中运行吗？

Answer 1

在Ubuntu中对我来说非常好用：

% ruby -00 -e 'a = gets; puts a; puts "here is #{$/.inspect}"'                                                                        
hi

hi

here is "\n\n"

看起来你只是错过了命令中的最后一个单引号。