Or, perhaps, working with a really minimal system… saw two posts that were pretty handy – basically how to reconstruct binaries with the shell alone (no cheats like mv or an editor or anything…); reconstruction by force:

http://fakeguido.blogspot.com/2010/08/rescuing-hosed-system-using-only-bash.html

And:

http://www.eusebeia.dyndns.org/bashcp

Some nice little functions here building on the above:

http://www.h-i-r.net/2009/08/cratered-your-linux-box-here-are-some.html

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