For decades, the GNU coreutils have been the invisible backbone of every Linux system. Commands like ls, cat, cp, and find are so fundamental that most users never think about them, much less consider replacing them. But a growing movement among Linux power users and developers is doing exactly that—swapping out these C-based stalwarts for modern alternatives written in Rust. The results, according to hands-on testing and community benchmarks, are surprisingly compelling: faster execution, better defaults, and a more pleasant command-line experience.
The trend has been building for years, but a recent detailed experiment published by MakeUseOf brought fresh attention to the practical implications. The author replaced a full set of standard Linux command-line tools with their Rust-written counterparts and ran them through real-world usage. The takeaway was unambiguous: the Rust versions were not just comparable—they were measurably faster in many common operations, and they often shipped with smarter default behaviors that reduced the need for flags and configuration.
The Old Guard: Why GNU Coreutils Have Persisted So Long
GNU coreutils have been the default on virtually every Linux distribution since the early 1990s. Written primarily in C, they are the product of decades of optimization, bug fixes, and portability work. The tools are battle-tested to an extraordinary degree. They run on everything from embedded devices to supercomputers, and their behavior is codified in POSIX standards that govern how Unix-like systems are expected to operate.
But age brings baggage. Many of these tools carry design decisions from an era when terminal output was monochrome, disk I/O was the primary bottleneck, and multi-core processors didn’t exist. Their default outputs are often sparse and unintuitive for modern users. The ls command, for example, doesn’t colorize output or display file sizes in human-readable formats unless you pass specific flags. The find command’s syntax is notoriously arcane. These are not bugs—they are artifacts of a different computing era, preserved in the name of backward compatibility.
The Rust Replacements: What’s Actually Being Swapped
The Rust alternatives that have gained the most traction form a recognizable roster. As detailed by MakeUseOf, the key replacements include: eza (replacing ls), bat (replacing cat), fd (replacing find), ripgrep (replacing grep), dust (replacing du), sd (replacing sed), zoxide (replacing cd), bottom or btm (replacing top), and procs (replacing ps). Each of these tools is an independent open-source project, typically maintained on GitHub, and each has been designed from scratch to address specific pain points in its GNU counterpart.
What makes these tools stand out is not just raw speed—though that matters—but thoughtful defaults. eza, for instance, displays color-coded output, git status indicators, and human-readable file sizes without any flags. bat adds syntax highlighting, line numbers, and git diff integration to file viewing. fd uses a simpler syntax than find and respects .gitignore files by default, which means it skips irrelevant directories automatically. These are not superficial cosmetic changes; they represent a rethinking of what command-line tools should do out of the box in 2025.
The Performance Numbers: Where Rust Actually Wins
Performance is where the conversation gets particularly interesting for systems engineers and DevOps professionals. Rust’s ownership model and zero-cost abstractions allow it to produce binaries that rival C in execution speed while providing memory safety guarantees that C cannot offer. In the MakeUseOf testing, ripgrep consistently outperformed GNU grep in searching large codebases and log files, sometimes by significant margins. The tool achieves this through a combination of optimized regex engines, memory-mapped file I/O, and intelligent parallelism.
fd showed similar advantages over find, particularly in large directory trees. Its default behavior of parallelizing directory traversal gives it an inherent speed advantage on modern multi-core systems—something GNU find was never designed to exploit. dust provided faster and more visually intuitive disk usage analysis than du, rendering results as a graphical bar chart in the terminal. These aren’t marginal improvements visible only in synthetic benchmarks; they are differences users can feel in daily terminal work.
Memory Safety: The Argument That Goes Beyond Speed
Speed and usability improvements are easy to appreciate, but the security implications of moving from C to Rust may be the most consequential factor in the long run. Memory safety vulnerabilities—buffer overflows, use-after-free errors, null pointer dereferences—have been the single largest category of critical security bugs in C-based software for decades. The Cybersecurity and Infrastructure Security Agency (CISA) and the White House Office of the National Cyber Director have both issued guidance encouraging the adoption of memory-safe programming languages, with Rust being the most frequently cited alternative to C and C++.
The Linux kernel itself has begun incorporating Rust code, a move that was formally approved in late 2022 and has been expanding steadily since. While the coreutils replacements discussed here are userspace tools rather than kernel components, they reflect the same philosophical shift. Every line of C code replaced by Rust is, statistically speaking, one less potential source of memory corruption vulnerabilities. For organizations running Linux at scale—cloud providers, financial institutions, government agencies—this is not an abstract concern but a practical risk-reduction measure.
Adoption Barriers: Why Distributions Haven’t Made the Switch Yet
Despite the apparent advantages, no major Linux distribution has replaced GNU coreutils with Rust alternatives as a default. The reasons are both technical and political. GNU coreutils are POSIX-compliant, meaning they conform to a formal standard that many scripts, build systems, and applications depend on. The Rust alternatives often have different flag syntax, different output formats, and different default behaviors. Swapping them in as drop-in replacements would break countless shell scripts and automated workflows.
There is also the matter of compilation and packaging. Rust’s compilation model produces statically linked binaries that can be larger than their C equivalents, and the Rust toolchain itself is a significant dependency. Some distributions, particularly those focused on minimalism or embedded systems, are reluctant to add Rust as a build dependency. Additionally, the GNU project and the Free Software Foundation have deep institutional ties to the Linux distribution community, and replacing their tools carries political weight that goes beyond technical merit.
The Practical Path Forward: Aliasing and Coexistence
For now, the most common adoption pattern is coexistence. Users install the Rust tools alongside the GNU originals and set up shell aliases so that typing ls actually invokes eza, cat invokes bat, and so on. This approach, as described in the MakeUseOf article, allows users to benefit from the improved tools in interactive sessions while leaving scripts and system processes untouched. It is a pragmatic compromise that avoids the breakage risks of a wholesale replacement.
Several community projects have also emerged to package these tools together. The modern-unix GitHub repository, for example, maintains a curated list of Rust and Go replacements for classic Unix commands. Some developers have created dotfile configurations and installation scripts that automate the setup of a fully modernized terminal environment. The barrier to entry has dropped considerably; most of these tools can be installed via standard package managers on Debian, Fedora, Arch, and macOS.
What This Means for the Future of the Linux Command Line
The gradual replacement of C-based command-line tools with Rust alternatives is not happening through any coordinated mandate. It is a bottom-up movement driven by individual developers who find the new tools faster, safer, and more pleasant to use. But the cumulative effect is significant. As more developers adopt these tools, more documentation, tutorials, and workflows will assume their presence. Over time, the pressure on distributions to offer them as defaults—or at least as officially supported alternatives—will grow.
The broader implication is that Rust is proving itself not just as a systems programming language for new projects, but as a viable replacement for entrenched C codebases that have been in production for 30 years or more. The coreutils experiment is a microcosm of a much larger transition that is playing out across the software industry, from web browsers to operating system kernels to command-line utilities. For Linux professionals, the message is clear: the tools you’ve been using since the 1990s now have competition, and that competition is winning on the metrics that matter most.