remove newlines from a file

Jerry McAllister jerrymc at
Tue Sep 1 20:45:53 UTC 2009

On Tue, Sep 01, 2009 at 06:03:19PM +0000, Paul Schmehl wrote:

> I found a sed tutorial once that did this, but I can't seem to find it 
> again. I have a file with multiple lines, each of which contains a single 
> ip followed by a /32 and a comma.  I want to combine all those lines into a 
> single line by removing all the newline characters at the end of each line.
> What's the best/most efficient way of doing that in a shell?

Use tr(1)     something like

    tr -d "[\n]"  < inputfile  > outputfile


> -- 
> Paul Schmehl, Senior Infosec Analyst
> As if it wasn't already obvious, my opinions
> are my own and not those of my employer.
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