Subject: Re: [PATCH] rebase--interactive: Replace unportable 'tac' by a sed script.

From: Paolo Bonzini <[email-masked]>
Date: Mon, 28 Apr 2008 10:58:04 +0200

>> Here's my try, which avoids the perl hammer. ;)
>> ...
>> -	tac | \
>> +	sed -ne '1!G;$p;h' | \
> 
> Thanks for trying, but frankly, I'd prefer the Perl hammer, as any
> advanced sed scripting tend to be far less portable.

In fact this script is not portable. :-(  Not so much because of its 
"advanced-ness", but because it loads the entire file in memory, and 
thus hits the limit on the buffer length of many seds.

Paolo