busybox
é o favorito dos sistemas Linux embarcados.
BusyBox combines tiny versions of many common UNIX utilities into a single small executable. It provides replacements for most of the utilities you usually find in GNU fileutils, shellutils, etc. The utilities in BusyBox generally have fewer options than their full-featured GNU cousins; however, the options that are included provide the expected functionality and behave very much like their GNU counterparts. BusyBox provides a fairly complete environment for any small or embedded system.
BusyBox has been written with size-optimization and limited resources in mind. It is also extremely modular so you can easily include or exclude commands (or features) at compile time. This makes it easy to customize your embedded systems. To create a working system, just add some device nodes in /dev, a few configuration files in /etc, and a Linux kernel.
Você pode praticamente fazer qualquer nome de coreutil um link para o binário do busybox e ele funcionará. você também pode executar busybox <command>
e isso funcionará. Exemplo: se você está no Gentoo e ainda não instalou seu vi
, você pode executar busybox vi filename
e você estará no vi. É
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Alpine Linux - baseado no BusyBox e no uClibc, aqui está uma visão geral