Re: CR/LF

[David Wright <deblis@lionunicorn.co.uk>]

On Sat 10 Dec 2022 at 23:16:12 (-0500), Jim Popovitch wrote:

> The following
> will add a CR/LF: 
> 
>   TEST=`ssh -o LogLevel=QUIET -t user@server "echo -n ''"`; echo ${TEST}
> 
> Using -n on the 2nd echo would remove a necessary CR/LF on any remote
> cmd that did produce output.

I didn't give much consideration to what's left of the semicolon.
But echo ${TEST} will always write a newline unless, quote:
       -n     do not output the trailing newline
       -e     enable interpretation of backslash escapes
The second of these allows you to spring surprises.

$ Test="abcd"
$ echo -n ${Test}
abcd$ echo ${Test}
abcd
$ Test=""
$ echo ${Test}

$ Test=
$ echo ${Test}

$ unset Test
$ echo ${Test}

$ Test="abcd\c"
$ echo -e ${Test}
abcd$ 

Cheers,
David.