[SunHELP] sed, newline handling

Rich this is great.  One final kicker, if you don't mind =).

what would I do in a scenario as such:

This
is
a
test

This
is
a 
test

...

expected output:
This,is,a,test
This,is,a,test
...


-----Original Message-----
From: Rich Kulawiec [mailto:rsk at gsp.org] 
Sent: Wednesday, February 12, 2003 4:27 PM
To: Markham, Richard
Subject: Re: [SunHELP] sed, newline handling


On Wed, Feb 12, 2003 at 03:48:32PM -0500, Markham, Richard wrote:
> I need to be able to remove new lines:
> This
> is
> a
> test
> 
> Thisisatest
> 
> also would like the option to replace newlines:
> This
> is
> a
> test
> 
> This,is,a,test

Don't use sed. ;-)  It's much easier and faster with tr:

	tr -d "\012" < infile > outfile

will remove all the newlines.  If you need to have one and only one at the
end of the file:

	tr -d "\012" < infile > outfile
	echo "" >> outfile

For your second example:

	tr "\012" "," < infile > outfile

and again, if you want a trailing newline:

	tr "\012" "," < infile > outfile
	echo "" >> outfile

(Why the \012?  Octal code for newline and one of the ways to 
specify a particular character to tr.)

---Rsk