34 lines
832 B
HTML
34 lines
832 B
HTML
|
---
|
||
|
layout: page
|
||
|
author: Domenico Votta
|
||
|
category-page: advanced
|
||
|
category-title: Advanced commands
|
||
|
tags: remove column
|
||
|
title: colrm
|
||
|
---
|
||
|
The <code>colrm</code> is a command that removes the column that you indicate <br>
|
||
|
|
||
|
Here we have a file named <code>example.txt</code> that contains two lines to test this command:<br>
|
||
|
|
||
|
<code>example.txt</code>
|
||
|
{% highlight bash linenos %}
|
||
|
123456789
|
||
|
abcdefghi
|
||
|
{% endhighlight %}
|
||
|
|
||
|
The syntax command is:
|
||
|
<pre> colrm [first] [last]</pre>
|
||
|
|
||
|
<pre>
|
||
|
colrm 4 < example.txt
|
||
|
123
|
||
|
abc
|
||
|
</pre>
|
||
|
<p>How you can see, if I don't indicate the last column, the command removes all the colums starting from 4 included. </p>
|
||
|
<pre>
|
||
|
colrm 2 4 < example.txt
|
||
|
156789
|
||
|
aefghi
|
||
|
</pre>
|
||
|
<p>Here, how you can see, the command has removed not all the columns, but only the colums that starting at 2 and ending at 4, included. </p>
|