From mboxrd@z Thu Jan  1 00:00:00 1970
From: Adam Bowen <adamb@agitate.org.uk>
Subject: Re: need help with a bash script
Date: Tue, 19 Sep 2006 20:53:41 +0100
Message-ID: <45104AC5.8000709@agitate.org.uk>
References: <4510402A.8090703@fcaglp.unlp.edu.ar>
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To: zyserman@fcaglp.unlp.edu.ar
Cc: linux-admin@vger.kernel.org

Hi,

Fabio Zyserman wrote:
> Hi all,
> 
> sorry if this is not the appropriate list to post my question,
> but surely more than one guru here will be able to
> guide me in my modest quest.
> 
> Here is my problem:
> 
> 
> I have a lot of data files, which differ in their name by a number,
> for example:
> data-theta=0-np=1.2
> data-theta=0-np=1.3
> data-theta=0-np=1.4,
> ...and so on.
> 
> All files have the same structure (same number of columns and lines);
> each single entry is a real number in free exp format, i.e. it looks 
> like this:
> 0.1224e01, but it is not important, I think
> 
> What I want to do is to create a new file, with one line from each of the
> data files (say, line beginning with 0.01e00), adding to each line in 
> the new file the number appearing in the name of the corresponding data 
> file.
> That is, the new file will contain one more column than the original 
> ones; the new
> file would be
> 0.01e00 .... .... .... 1.2
> 0.01e00 .... .... .... 1.3
> 0.01e00 .... .... .... 1.4

Something like this should do it (if you were searching for 0.01e00):

grep 0.01e00 data-theta=0-np=* | sed 
's/^data-theta=0-np=\([^:]*\):\(.*\)/\2 \1/'

Cheers

Adam