On 08/02/2012 07:18 AM, Andreas Schwab wrote:
>> For bash, one solution is:
>>
>> 	$ printf '\na\nb'|tac -rs '.\|'$(printf "\n")
> 
> No, command substitution strips trailing newlines.

So don't make it trailing:

printf '\na\nb'|tac -rs "$(printf '\n\\|.')"

-- 
Eric Blake   eblake@redhat.com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org