Re: sed "Hello, world!" program?

On 2014-02-21 22:52, Rakesh Sharma wrote:
> My suggestion is the following:
>     %     yes   |   sed -e 's/.*/Hello, world\!/' -e 'q'
> 
> This takes makes it shell-agnostic

Again, command.com/cmd.exe doesn't have "yes" so I still prefer "echo"
which is available in every shell I have at my disposal (all *nix
shells, command.com, cmd.exe, and Power Shell).  But the
shell-escaping is another layer of complexity.  Using cmd.exe and
command.com expects double-quotes rather than single quotes (though
certain versions of sed might be smart enough to reparse the
arguments for single-quote escaping), so one might have to do use
single-quotes and then tell sed to use an escape sequence.

 sed -e "s/.*/Hello, world\x21/" -e q

-tkc