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I asked here about concatenating two rows to form unique identifier. I realized that this task may be very trivial in Emacs: C-x C-t, concatenate, C-x C-t -- is it that simple? I am a Vim user and after pressing some buttons my emacs just ended to halt.

How to do the concatenation in Emacs?

I repost the INPUT and OUTPUT:

Input where identifier specified by two rows 1-2

L1_I                L1_I                C-14               <---|  unique idenfier 
WWPTH               WWPT                WWPTH              <---|  on two rows
1                   2                   3

Goal: how to concatenate the rows?

L1_IWWPTH           L1_IWWPT            C-14WWPTH          <--- unique identifier
1                   2                   3
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  • You seem to have an accepted solution in your original question. What is the purpose in asking for more solutions with different tools? – phils Nov 11 '14 at 07:38
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    @phils this is clearly only about Emacs while the other question was about simplest *ix tool. I want to focus attention to Emacs here. – hhh Nov 11 '14 at 13:16
  • I think this question is better suited for superuser. No programming in sight... – RickyA Nov 11 '14 at 13:58
  • @RickyA I think real programmers are able to choose the right tool at the right place: whether it is a Python, Vim, Emacs, Haskell, Mathematica or whatever -- now I am acknowledging that there is no sense to use a specific programming language for this kind of repetitive columnwise data processing rather a generic tool. Vim has a plugin to do this while builtin to Emacs, I really think it makes sense to switch to Emacs to do this. It looks to be the simplest tool for this task. – hhh Nov 11 '14 at 17:58

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