捕获“ diff”输出，以获取“ diff”。与org-babel [英] Capturing the output of "diff" with org-babel

问题描述

我正在尝试使用org-babel捕获 diff 的输出，但是由于某些原因，它无法正常工作。对于文件

1

  abc 
  

2

  acb 
  

diff 1 2 从命令行返回

  1c1 
< a b c 
 --- 
> acb 
  

但是对于org-babel，什么也没有：

 ＃+ begin_src sh 
 diff 1 2 
＃+ end_src 
 
＃+结果：
  

小型缓冲区读取代码块未产生输出。 org-babel错误输出窗口为空。其他命令，例如 ls 显示预期的输出。我不熟悉org-babel。

我尝试使用：结果逐字输出，没有任何变化。我还尝试使用：results output replace 作为建议的此处。没帮助。

• Emacs版本是24.4.1（在Debian jessie上）


• Org -mode版本是8.2.10

解决方案

我可以在OSX上重现您的问题。

奇怪的是，执行babel块会打开 Org-babel错误输出缓冲区，就像有些东西要进入STDERR。 / p>

如果在diff后添加任何其他输出，结果将显示OK。例如，

 ＃+ begin_src sh：结果输出
 diff 1 2 
 echo 
 ＃+ end_src 
  

如果您将diff的结果强制为标准输出，结果还将显示：

 ＃+ begin_src sh：结果输出
 diff 1 2 |猫
＃+ end_src 
  

I'm trying to capture the output of diff with org-babel, but for some reason it's not working. For the files

1

a b c

2

a c b

diff 1 2 called from the command line returns

1c1
< a b c
---
> a c b

But with org-babel, nothing:

#+begin_src sh                                                                                                                                                 
diff 1 2                                                                                                                                                       
#+end_src                                                                                                                                                      

#+RESULTS:

The minibuffer reads "Code block produced no output". The org-babel error output window is empty. Other commands such as ls show the output as expected. I'm not familiar with org-babel.

I tried using :results output verbatim, no changes. I also tried using :results output replace as suggested here. Didn't help.

• Emacs version is 24.4.1 (on Debian jessie)
• Org-mode version is 8.2.10

解决方案

I could reproduce your problem (on OSX).

The strange thing is that executing the babel block will open the Org-babel Error Output buffer, as if something were going to STDERR.

If you add any other output after diff, results will display OK. For example,

#+begin_src sh :results output
diff 1 2
echo
#+end_src

If you force diff's results to stdout, results will also display:

#+begin_src sh :results output
diff 1 2 | cat
#+end_src

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