Re: How to erase these additional blank lines?
From: glen herrmannsfeldt (gah_at_ugcs.caltech.edu)
Date: 03/30/04
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Date: Tue, 30 Mar 2004 17:46:17 GMT
Han JIANG wrote:
> Hi,
> I am a newbie on unix. I met a strange problem here on Origin 2000.
>
> I created a text data file which had 1,000 lines on my pc (Windows of
> course) and upload it to my acoount on Origin.When I use vi to edit it on
> Origin, I found there is a additional blank line between every 2 lines!
> That makes my program cann't input this datafile.
>
> Who know what happen here? And how can erase these additional blank lines?
> Please don't say erase them line by line since I have 1000 lines there.
On unix:
grep -v ^$ oldfile > newfile
will remove zero length lines. If they might have space or tabs
in them:
grep -v '^[[:space:]]*$' oldfile > newfile
-- glen
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