busybox/README

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Please see the LICENSE file for details on copying and usage.
Please refer to the INSTALL file for instructions on how to build.
BusyBox combines tiny versions of many common UNIX utilities into a single
small executable. It provides minimalist replacements for most of the utilities
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you usually find in GNU coreutils, util-linux, 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
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much like their GNU counterparts.
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
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systems. To create a working system, just add /dev, /etc, and a Linux kernel.
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BusyBox provides a fairly complete POSIX environment for any small or embedded
system.
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BusyBox is extremely configurable. This allows you to include only the
components you need, thereby reducing binary size. See the file INSTALL
for details.
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----------------
Supported architectures:
BusyBox in general will build on any architecture supported by gcc.
Kernel module loading for 2.2 and 2.4 Linux kernels is currently
limited to ARM, CRIS, H8/300, x86, ia64, x86_64, m68k, MIPS, PowerPC,
S390, SH3/4/5, Sparc, v850e, and x86_64 for 2.4.x kernels. For 2.6.x
kernels, kernel module loading support should work on all architectures.
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Supported C Libraries:
uClibc and glibc are supported. People have been looking at newlib and
dietlibc, but they are currently considered unsupported, untested, or
worse. Linux-libc5 is no longer supported -- you should probably use uClibc
instead if you want a small C library.
Supported kernels:
Full functionality requires Linux 2.2.x or better. A large fraction of the
code should run on just about anything. While the current code is fairly
Linux specific, it should be fairly easy to port the majority of the code
to support, say, FreeBSD or Solaris, or Mac OS X, or even Windows (if you
are into that sort of thing).
----------------
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Getting help:
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When you find you need help, you can check out the BusyBox mailing list
archives at http://busybox.net/lists/busybox/ or even join
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the mailing list if you are interested.
----------------
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Bugs:
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If you find bugs, please submit a detailed bug report to the BusyBox mailing
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list at busybox@mail.busybox.net. A well-written bug report should include a
transcript of a shell session that demonstrates the bad behavior and enables
anyone else to duplicate the bug on their own machine. The following is such
an example:
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To: busybox@mail.busybox.net
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From: diligent@testing.linux.org
Subject: /bin/date doesn't work
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Package: BusyBox
Version: 1.00
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When I execute BusyBox 'date' it produces unexpected results.
With GNU date I get the following output:
$ date
Fri Oct 8 14:19:41 MDT 2004
But when I use BusyBox date I get this instead:
$ date
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illegal instruction
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I am using Debian unstable, kernel version 2.4.25-vrs2 on a Netwinder,
and the latest uClibc from CVS. Thanks for the wonderful program!
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-Diligent
Note the careful description and use of examples showing not only what BusyBox
does, but also a counter example showing what an equivalent GNU app does. Bug
reports lacking such detail may never be fixed... Thanks for understanding.
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----------------
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Downloads:
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Source for the latest released version, as well as daily snapshots, can always
be downloaded from
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http://busybox.net/downloads/
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----------------
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CVS:
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BusyBox now has its own publicly browsable SVN tree at:
http://busybox.net/cgi-bin/viewcvs.cgi/trunk/busybox/
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Anonymous SVN access is available. For instructions, check out:
http://busybox.net/subversion.html
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For those that are actively contributing there is even SVN write access:
http://busybox.net/developer.html
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----------------
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Please feed suggestions, bug reports, insults, and bribes back to:
Erik Andersen
<andersen@codepoet.org>
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