only output the nth line

[kalinix]

On Wed, 2010-05-12 at 18:58 +0200, Jozsi Vadkan wrote:

> I have a file:
> 
> cat file.txt
> daemon
> 1):
> 596
> 0
> 0
> 1
> 0
> 0
> bin
> 2):
> 12
> 0
> 0
> 1
> 0
> 0
> sys
> 3):
> 0
> 0
> 0
> 0
> 0
> 0
> 
> 
> 
> And i want to only output the first, second, and fourth line to another
> file.
> 
> The:
> 
> sed -n '1,2p;4p' file.txt
> 
> doesn't work.
> 
> What magic do i need for it? :D
> 
> Thanks..:\
> 



Perhaps you need to redirect the output to the second file :)

'>' if you can overwrite the second file:

sed -n '1,2p;4p' file.txt > 2nd_file.txt

 or >> if you want to append to it:

sed -n '1,2p;4p' file.txt >> 2nd_file.txt


Cheers


Calin

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