[pass] [PATCH] generate only first line (correction)

Jason A. Donenfeld Jason at zx2c4.com
Tue May 6 15:50:57 CEST 2014

On Tue, May 6, 2014 at 3:48 PM, Matthew Cengia <mattcen at gmail.com> wrote:

> On 2014-05-06 15:36, Jason A. Donenfeld wrote:
> > I like this idea, but I want to make it happen via a simple sed one
> liner.
> > Will see if I can make it happen.
> Easy:
>   replace=wibble; printf "%s\n" a b c | sed $'1c \\\n'"$replace"$'\n'
>   wibble
>   b
>   c
> Bit of nasty shell quoting because MacOS sed requires the replacement to
> start on a newline, and be followed by one if you need don't want line 2
> tacked directly onto the end of line 1.

 The other quoting thing is - what if $replace contains characters that sed
interprets as control? "pwgen -s -y" is pretty random, after all... I wish
sed had some way of specifying a "stdin" token.
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