How do I combine all lines in a text file into a single line?

Posted by John on Ask Ubuntu See other posts from Ask Ubuntu or by John
Published on 2012-07-16T01:25:27Z Indexed on 2014/08/20 16:36 UTC
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I want to get all lines in a text into one line. I'm a beginner at coding trying to learn by doing. I've spent four hours trying to solve this problem. I know there's a simple solution to this problem. Here's what I've been trying.

sed -e 'N;s/\n//' myfile.txt #Does nothing

sed -e :a -e N -e 's/\n/ /' -e ta myfile.txt #output all messed up and I can't make head nor tail of the syntax

cat myfile.txt | tr -d '\n' > myfile.txt # Deletes all lines

Here's the text file:

500212
262578-4-4
23200
GRIFFITH LABORATORIES LTD
GRIFFITH LABORATORIES
SOUTH DUBLIN COUNTY COUNCIL
OFFICE
OFFICE (INDUSTRIAL)
List Rateable
2 Pineview Industrial Estate
Firhouse Road
Knocklyon
31 Dec 2007
01 Jan 2008"   

I can't figure out where I've gone wrong....

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