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There is a similar solution at <a href="https://www.experts-exchange.com/questions/26967426/Combine-text-files-according-the-first-column.html" rel="ugc">here</a><br />
How can I apply the priciple?<br />
<br />
Thanks for help.
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There is a similar solution at here [https://www.experts-exchange.com/questions/26967426/Combine-text-files-according-the-first-column.html]
How can I apply the priciple?

Thanks for help.

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What is wrong with the comment you accepted as solution in your other post? &nbsp;If it doesn't work then request that it be reopened.
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What is wrong with the comment you accepted as solution in your other post?  If it doesn't work then request that it be reopened.

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I am sorry, I can't follow you. I don't understand your comment. It is a different question.
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I am sorry, I can't follow you. I don't understand your comment. It is a different question.

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Okay. Thanks for advice. A little modification. If ID is in the second column, how to modify the code?<br />

<pre><code id="code-20-35779071-1">h1 ID  h2  h3
1   a   5   7
3   b   3   5
0   c   4   8 </code></pre>
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Okay. Thanks for advice. A little modification. If ID is in the second column, how to modify the code?


h1 ID  h2  h3
1   a   5   7
3   b   3   5
0   c   4   8 

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Thanks you. I will try it by myself.
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<div class="content wysiwyg-content">
Hi, I have many file s to be combined. Ex,<br />
File 1
<pre><code id="code-10-27043428-1">ID  h1 h2 h3
a   1  5  7
b   3  3  5
c   0  4  8</code></pre>
File 2<br />

<pre><code id="code-10-27043428-2">ID h4 h5 h6
a  2  4  9
b  3  6  1
f  4  1  5</code></pre>
Expected files<br />

<pre><code id="code-10-27043428-3">ID  h1  h2  h3  h4 h5  h6
a   1   5   7   2   4   9 
b   3   3   5   3   6   1
c   0   4   8 
f               4   1   5</code></pre>
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Hi, I have many file s to be combined. Ex,
File 1(CODE)
File 2
(CODE)
Expected files
(CODE)

Combine multiple files

C# is an object-oriented programming language created in conjunction with Microsoft’s .NET framework. Compilation is usually done into the Microsoft Intermediate Language (MSIL), which is then JIT-compiled to native code (and cached) during execution in the Common Language Runtime (CLR).