[Emacs-bug-tracker] bug#7076: closed (Command required)

[GNU bug Tracking System]

Your message dated Mon, 20 Sep 2010 15:21:18 -0600
with message-id <address@hidden>
and subject line Re: bug#7076: Command required
has caused the GNU bug report #7076,
regarding Command required
to be marked as done.

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-- 
7076: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=7076
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--- Begin Message --- Subject: Command required Date: Mon, 20 Sep 2010 15:10:48 +0500

How can we extract few characters from second or third line of a text file using cut command of Linux OS?

 

For example: to get 7-10 characters from 3^rd line of a text file is required, what can be the command?

 

 

Regards,

 

Imran

 

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> --- Begin Message ---
>
>
>
> Subject: 
>
> Re: bug#7076: Command required
>
>
>
>
> Date: 
>
> Mon, 20 Sep 2010 15:21:18 -0600
>
>
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>
> User-agent: 
>
> Mutt/1.5.20 (2009-06-14)
>
>
>
>
> Imran Shoaib wrote:
> > How can we extract few characters from second or third line of a text
> > file using cut command of Linux OS?
>
> In the future please send discussion questions concerning the
> coreutils to the coreutils mailing list instead of the bug-coreutils.
> The bug-coreutils mailing list is for bug reports only and every email
> message opens up a bug in the bug tracking system.  I am closing this
> bug report but discussion may continue.  Thanks.
>
> A good place for general help questions is address@hidden
>
> > For example: to get 7-10 characters from 3rd line of a text file is
> > required, what can be the command?
>
> I would use sed for this.  Don't print by default (-n) and then print
> the 3rd line.
>
>   $ printf "1234567890\n1234567890\n1234567890\n" | sed -n 3p
>
> If you want specific characters then you can delete the unwanted
> ones.  This is a contrived example:
>
>   $ printf "1234567890\n1234567890\n1234567890\n" | sed -n 
> '3{s/^..\(..\).*/\1/;p;}'
>
> Or you can chain commands together.  Print only the third line to a
> command that pulls apart fields.
>
>   $ printf "11 12 13\n21 22 23\n31 32 33\n" | awk 'NR==3{print$2}'
>   32
>
>   $ printf "11 12 13\n21 22 23\n31 32 33\n" | awk 'NR==3{print $2, $3}'
>   32 33
>
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> Bob
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