shitbox

The Harbor Feight multi tool of embedded Linux

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Introduction

Shitbox is inspired by the project busybox but with a much more limited scope. While Busybox aims to be "The swiss army knife of embedded linux" you can think of shitbox as being more like "The box store multi tool of embedded linux".

All joking aside the utilities which are present function mostly as expected and the code aims to be robust. It's written in Rust, not C, for whatever that's worth. Like Busybox it is a multi-call binary which is therefore able to share code between applets, making for an overall smaller binary.

Provided Commands

b2sum
base32
base64
basename
chgrp
chmod
chown
chroot
clear
cut
df
dirname
echo
false
factor
fold
groups
head
hostid
hostname
link
ln
logname
md5sum
mkfifo
mknod
mktemp
mountpoint
nologin
nproc
printenv
pwd
readlink
realpath
rev
rm
rmdir
sha1sum
sha224sum
sha256sum
sha384sum
sha512sum
sleep
swaplabel
swapoff
sync
touch
true
truncate
umount
unlink
wc
which
who
whoami
yes

Scope

Shitbox does not aim to supply an entire system of utilities, but rather a subset of the most common Unix shell utilities. Things which are out of scope for the project include:

Shells
Network servers
Kernel module handling utilities
Anything requiring suid or sgid bits such as su or sudo The code is not intended to be portable across different architectures, only Linux is supported.

Full compatability with GNU coreutils is not intended. Compliance with POSIX is the main goal, with extensions provided by GNU or BSD where they make sense, and certain tweaks to improve consistency of behavior where they do not interfere with POSIX compliance.

Installation

Building is done using the official Rust toolchain. It is recommended that you install your toolchain using Rustup rather than distro packages, as old compiler versions are not supported.

cargo build --release

This produces three binaries: corebox, hashbox and utilbox. Most of the commands ordinarily provided by GNU coreutils are applets of corebox, with the exception of cryptographic hash related commands which are split out into hashbox. Linux swpecific commands ordinarily provided by the util-linux package are in utilbox.

The bootstrap applet provides facility for installing the binary, creating all required symlinks and installing some nice to haves such as Unix man pages and shell completions [see below].

target/release/corebox help bootstrap

Supported shells for completions

Bash
Fish
NuShell
PowerShell
Zsh