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Date: Sat, 21 Jan 2012 04:39:57 +0200
From: Daniel Shahaf <d.s@daniel.shahaf.name>
To: Christian Neukirchen <chneukirchen@gmail.com>
Cc: zsh-workers@zsh.org
Subject: Re: Obscure zsh history overflow with segfault
Message-ID: <20120121023957.GA2643@daniel3.local>
References: <87ty3q5ffx.fsf@gmail.com>
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User-Agent: Mutt/1.5.20 (2009-06-14)

Christian Neukirchen wrote on Fri, Jan 20, 2012 at 20:42:10 +0100:
> Any ideas?  TBH, I don't even know what "r 100 asdfgh" should do,
> it was a mistyping of "repeat 100 asdfgh".

% which r
r: shell built-in command
% man zshall | grep -w r | grep -w fc 
       r      Same as fc -e -.
% run-help fc | head -30
...
% 

Apparently, 'r 100 foo' should re-execute the portion of your history
from event #100 to event 'foo'.

Sounds like a bad idea...