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git-svn-id: svn+ssh://atelier.inf.usi.ch/home/bevilj/group-1@254 a672b425-5310-4d7a-af5c-997e18724b81
41 lines
889 B
HTML
41 lines
889 B
HTML
---
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layout: page
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author: Domenico Votta
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category-page: advanced
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category-title: Advanced commands
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tags: remove column
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title: colrm
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previous-page: pages/cmd/advanced/bc.html
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next-page: pages/cmd/advanced/comm.html
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---
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The <code>colrm</code> is a command that removes the column that you indicate <br>
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Here we have a file named <code>example.txt</code> that contains two lines to test this command:<br>
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{% highlight bash %}
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123456789
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abcdefghi
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{% endhighlight %}
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The syntax command is:
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<pre>
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colrm [first] [last]
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</pre>
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<pre>
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colrm 4 < example.txt
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123
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abc
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</pre>
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How you can see, if I don't indicate the last column, the command removes
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all the colums starting from 4 included.
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<pre>
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colrm 2 4 < example.txt
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156789
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aefghi
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</pre>
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Here, how you can see, the command has removed not all the columns, but only the colums that
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starting at 2 and ending at 4, included.
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