uutils

    uutils/coreutils

    Cross-platform Rust rewrite of the GNU coreutils

    mobile
    busybox
    command-line-tool
    coreutils
    cross-platform
    gnu-coreutils
    rust
    Rust
    MIT
    22.7K stars
    1.8K forks
    22.7K watching
    Updated 2/27/2026
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    About coreutils

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    uutils coreutils

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    uutils coreutils is a cross-platform reimplementation of the GNU coreutils in Rust. While all programs have been implemented, some options might be missing or different behavior might be experienced.

    To install it:

    cargo install coreutils
    ~/.cargo/bin/coreutils
    

    Goals

    uutils aims to be a drop-in replacement for the GNU utils. Differences with GNU are treated as bugs.

    uutils aims to work on as many platforms as possible, to be able to use the same utils on Linux, macOS, Windows and other platforms. This ensures, for example, that scripts can be easily transferred between platforms.

    Documentation

    uutils has both user and developer documentation available:

    Both can also be generated locally, the instructions for that can be found in the coreutils docs repository.

    Requirements

    • Rust (cargo, rustc)
    • GNU Make (optional)

    Rust Version

    uutils follows Rust's release channels and is tested against stable, beta and nightly. The current Minimum Supported Rust Version (MSRV) is 1.85.0.

    Building

    There are currently two methods to build the uutils binaries: either Cargo or GNU Make.

    Building the full package, including all documentation, requires both Cargo and GNU Make on a Unix platform.

    For either method, we first need to fetch the repository:

    git clone https://github.com/uutils/coreutils
    cd coreutils
    

    Cargo

    Building uutils using Cargo is easy because the process is the same as for every other Rust program:

    cargo build --release
    

    This command builds the most portable common core set of uutils into a multicall (BusyBox-type) binary, named 'coreutils', on most Rust-supported platforms.

    Additional platform-specific uutils are often available. Building these expanded sets of uutils for a platform (on that platform) is as simple as specifying it as a feature:

    cargo build --release --features macos
    # or ...
    cargo build --release --features windows
    # or ...
    cargo build --release --features unix
    

    If you don't want to build every utility available on your platform into the final binary, you can also specify which ones you want to build manually. For example:

    cargo build --features "base32 cat echo rm" --no-default-features
    

    If you don't want to build the multicall binary and would prefer to build the utilities as individual binaries, that is also possible. Each utility is contained in its own package within the main repository, named "uu_UTILNAME". To build individual utilities, use cargo to build just the specific packages (using the --package [aka -p] option). For example:

    cargo build -p uu_base32 -p uu_cat -p uu_echo -p uu_rm
    

    GNU Make

    Building using make is a simple process as well.

    To simply build all available utilities:

    make
    

    In release mode:

    make PROFILE=release
    

    To build all but a few of the available utilities:

    make SKIP_UTILS='UTILITY_1 UTILITY_2'
    

    To build only a few of the available utilities:

    make UTILS='UTILITY_1 UTILITY_2'
    

    Installation

    Install with Cargo

    Likewise, installing can simply be done using:

    cargo install --path . --locked
    

    This command will install uutils into Cargo's bin folder (e.g. $HOME/.cargo/bin).

    This does not install files necessary for shell completion or manpages. For manpages or shell completion to work, use GNU Make or see Manually install shell completions/Manually install manpages.

    Install with GNU Make

    To install all available utilities:

    make install
    

    To install using sudo switch -E must be used:

    sudo -E make install
    

    To install all but a few of the available utilities:

    make SKIP_UTILS='UTILITY_1 UTILITY_2' install
    

    To install only a few of the available utilities:

    make UTILS='UTILITY_1 UTILITY_2' install
    

    To install every program with a prefix (e.g. uu-echo uu-cat):

    make PROG_PREFIX=PREFIX_GOES_HERE install
    

    To install the multicall binary:

    make MULTICALL=y install
    

    Set install parent directory (default value is /usr/local):

    # DESTDIR is also supported
    make PREFIX=/my/path install
    

    Installing with make installs shell completions for all installed utilities for bash, fish and zsh. Completions for elvish and powershell can also be generated; See Manually install shell completions.

    To skip installation of completions and manpages:

    make COMPLETIONS=n MANPAGES=n install
    

    Manually install shell completions

    The coreutils binary can generate completions for the bash, elvish, fish, powershell and zsh shells. It prints the result to stdout.

    The syntax is:

    cargo run completion <utility> <shell>
    

    So, to install completions for ls on bash to /usr/local/share/bash-completion/completions/ls, run:

    cargo run completion ls bash > /usr/local/share/bash-completion/completions/ls
    

    Manually install manpages

    To generate manpages, the syntax is:

    cargo run manpage <utility>
    

    So, to install the manpage for ls to /usr/local/share/man/man1/ls.1 run:

    cargo run manpage ls > /usr/local/share/man/man1/ls.1
    

    Un-installation

    Un-installation differs depending on how you have installed uutils. If you used Cargo to install, use Cargo to uninstall. If you used GNU Make to install, use Make to uninstall.

    Uninstall with Cargo

    To uninstall uutils:

    cargo uninstall coreutils
    

    Uninstall with GNU Make

    To uninstall all utilities:

    make uninstall
    

    To uninstall every program with a set prefix:

    make PROG_PREFIX=PREFIX_GOES_HERE uninstall
    

    To uninstall the multicall binary:

    make MULTICALL=y uninstall
    

    To uninstall from a custom parent directory:

    # DESTDIR is also supported
    make PREFIX=/my/path uninstall
    

    GNU test suite compatibility

    Below is the evolution of how many GNU tests uutils passes. A more detailed breakdown of the GNU test results of the main branch can be found in the user manual.

    See https://github.com/orgs/uutils/projects/1 for the main meta bugs (many are missing).

    Evolution over time

    Contributing

    To contribute to uutils, please see CONTRIBUTING.

    License

    uutils is licensed under the MIT License - see the LICENSE file for details

    GNU Coreutils is licensed under the GPL 3.0 or later.

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