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1 BusyBox combines tiny versions of many common UNIX utilities into a single
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2 small executable. It provides minimalist replacements for most of the utilities
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3 you usually find in bzip2, coreutils, dhcp, diffutils, e2fsprogs, file,
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4 findutils, gawk, grep, inetutils, less, modutils, net-tools, procps, sed,
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5 shadow, sysklogd, sysvinit, tar, util-linux, and vim. The utilities in BusyBox
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6 often have fewer options than their full-featured cousins; however, the options
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7 that are included provide the expected functionality and behave very much like
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8 their larger counterparts.
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9
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10 BusyBox has been written with size-optimization and limited resources in mind,
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11 both to produce small binaries and to reduce run-time memory usage. Busybox is
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12 also extremely modular so you can easily include or exclude commands (or
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13 features) at compile time. This makes it easy to customize embedded systems; to
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14 create a working system, just add /dev, /etc, and a Linux kernel. Busybox
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15 (usually together with uClibc) has also been used as a component of "thin
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16 client" desktop systems, live-CD distributions, rescue disks, installers, and
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17 so on.
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18
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19 BusyBox provides a fairly complete POSIX environment for any small system, both
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20 embedded environments and more full featured systems concerned about space.
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21 Busybox is slowly working towards implementing the full Single Unix
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22 Specification V3 (http://www.opengroup.org/onlinepubs/009695399/), but isn't
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23 there yet (and for size reasons will probably support at most UTF-8 for
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24 internationalization). We are also interested in passing the Linux Test Project
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25 (http://ltp.sourceforge.net).
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