Text Manipulation/Replacement

[Rick Stevens]

Ubence Quevedo wrote:
> On Sep 22, 2008, at 04:34 PM, Rick Stevens wrote:
> 
>> Ubence Quevedo wrote:
>>> ----- Original Message ----
>>>> From: Patrick O'Callaghan <pocallaghan at gmail.com>
>>>> To: fedora-list at redhat.com
>>>> Sent: Monday, September 22, 2008 3:03:35 PM
>>>> Subject: Re: Text Manipulation/Replacement
>>>>
>>>> On Mon, 2008-09-22 at 14:57 -0700, Ubence Quevedo wrote:
>>>>> Hello All,
>>>>>
>>>>> I've used pdftotext to convert a pdf document to text and then used a
>>>> combination of grep and awk to single out data and replace 
>>>> formatting that I didn't need.
>>>>> The output data eventually looks like this:
>>>>> 12,123456789
>>>>> ,0987654321
>>>>>
>>>>> But I want it to look like this:
>>>>> 12,123456789,0987654321
>>>>>
>>>>> I've tried many different things with awk, but I can't get it 
>>>>> replace \r, with
>>>> just a ,
>>>>
>>>> For one thing, end-of-line in standard Unix text files is not \r
>>>> (Carriage Return), it's \n (Newline).
>>> Thanks for splitting hairs.  :^)  \r is what first came to mind.
>>> I've got a lead from another list that I posted on how to use perl to 
>>> accomplish what I need, but it isn't specific enough to not replace 
>>> all new lines with empty space:  cat foo.txt | perl -pi -e 's/\n//g'
>>> Anyone have any ideas?
>>
>> Uh, how about:
>>
>>     cat file.txt | sed '$!N;s/\n//' >newfile.txt
> 
> Hi Rick,
> 
> I'll have to play with this some more, but this appears to have done the 
> trick!
> 
> Thank you so much!

You're welcome.  There's actually a good page of "sed one-liners"
(helpful one-line sed scripts) at:

	http://sed.sourceforge.net/sed1line.txt

Turns out the one I gave you is on that list as "# join pairs of lines
side-by-side (like "paste")", but that one strips the last "\n" and
tacks on a space, which mine doesn't.
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- Rick Stevens, Systems Engineer                      ricks at nerd.com -
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