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Old 01-30-2011, 04:11 AM   #1
ntpntp
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Sed - print line number along with the line ?


Hi,
I want to print the line number with the pattern of the line on a same line using multi-patterns in sed.
But i don't know how to do it.
For example, I have a file

abc
def
ghi

I want to print

1 abc
2 def
3 ghi

Does anyone know how to do it?
Thanks
 
Old 01-30-2011, 04:20 AM   #2
EricTRA
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Hello,

You can use sed's = command to add line numbers if that's what you mean:
Code:
sed = yourfilename | sed 'N;s/\n/ /'
will print your file to screen with the line number in front of every line, followed by a space. If you want to redirect to another file, then use:
Code:
sed = yourfilename | sed 'N;s/\n/ /' > newfile
Kind regards,

Eric
 
Old 01-30-2011, 04:46 AM   #3
ntpntp
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Hi,

Thank you very much for your reply.

But do you know how to write it in a sed script?

Thanks
 
Old 01-30-2011, 05:28 AM   #4
grail
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Maybe you could explain why you need a script to perform a one line task?

Ultimately you have been given the solution, so should it not be up to you to work out how to put into a script?
 
Old 01-30-2011, 05:44 AM   #5
EricTRA
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Quote:
Originally Posted by ntpntp View Post
Hi,

Thank you very much for your reply.

But do you know how to write it in a sed script?

Thanks
Hi,

As indicated by grail, that should be up to you. You should put in the work and find out how to do it since we will not do all the work for you and give you a ready made solution. However if you already have put something together we'll gladly help you in fixing any errors or troubles you might encounter.

Kind regards,

Eric
 
Old 01-30-2011, 05:52 AM   #6
ntpntp
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Hi,
Thank you very much for your reply!
 
Old 01-30-2011, 05:58 AM   #7
EricTRA
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Hi,

You're welcome! If you consider this question/problem solved then please mark it as such using the Thread Tools. If you want to continue using this thread to post and query the script you want/need then of course you can do that, or you can open a new thread.

Kind regards,

Eric
 
  


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