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.

Thanks!

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In article <c4c9s5$667$1@unlnews.unl.edu>,
Han JIANG <jianghanunl@yahoo.com> 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.

awk 'NF>0' infile > outfile

or more cryptically:

awk 'NF' infile > outfile

Chuck Demas

--
Eat Healthy        |   _ _   | Nothing would be done at all,
Stay Fit           |   @ @   | If a man waited to do it so well,
Die Anyway         |    v    | That no one could find fault with it.
demas@theworld.com |  \___/  | http://world.std.com/~cpd

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On Tue, 30 Mar 2004 at 17:16 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.

grep -v '^$' FILE >NEWFILE

Or:

grep '.' FILE >NEWFILE

Or:

awk '/./'  FILE >NEWFILE

etc......

--
Chris F.A. Johnson                  http://cfaj.freeshell.org/shell
 ========================================
===========================
My code (if any) in this post is copyright 2004, Chris F.A. Johnson
and may be copied under the terms of the GNU General Public License

[ Post a follow-up to this message ]

Hi NewBe Here too

Couldnt you just do dd?

Thanks

quote:
Originally posted by Chris F.A. Johnson 
On Tue, 30 Mar 2004 at 17:16 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.

grep -v '^$' FILE >NEWFILE

Or:

grep '.' FILE >NEWFILE

Or:

awk '/./'  FILE >NEWFILE

etc......

--
Chris F.A. Johnson                  http://cfaj.freeshell.org/shell
 ========================================
===========================
My code (if any) in this post is copyright 2004, Chris F.A. Johnson
and may be copied under the terms of the GNU General Public License 

[ Post a follow-up to this message ]

In comp.unix.misc Han JIANG <jianghanunl@yahoo.com> 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.

Your "pc" ( running wintendo i assume ?) will use two characters
^M ( return ) and ^J ( line feed ) between lines. Un*x uses only ^J
but will sometimes present  ^M as another line feed ( controlled by
the command "stty".



> 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.

Edit the file :-)

It's not so difficult, several tools are available

vi, tr dos2ascii etc..

Using "vi" :

> vi file
( file is opend, press ':' ( cursor will go to bottom line), type
1,$s/^V^M//g  ( press return. ^V is made by holding control key while
pressing 'V', ^M is made by holding control while pressing 'M')


For a good introduction get "Essential System Administration" by eileen fris
h,
it contains lots of examples and is a good primer for unix knowledge.

> Thanks!



--
Peter Håkanson
IPSec  Sverige      ( At Gothenburg Riverside )
Sorry about my e-mail address, but i'm trying to keep spam out,
remove "icke-reklam" if you feel for mailing me. Thanx.

[ Post a follow-up to this message ]

"Han JIANG" <jianghanunl@yahoo.com> wrote in message news:<c4c9s5$667$1@unlnews.unl.edu>...

> 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.
>
> Thanks!

If you are running Solaris you can try running 'dos2unix'.

Mark

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