coreutils in V

This repository contains programs equivalent to GNU coreutils, written in the V language.

Goal

Complete set of coreutils, written as closely as possible to the POSIX spec, with as many GNU extensions as feasible.

We are looking for solid, working implementations of the commands, not 100% 1-to-1 parity, especially not quirks and unintended side-effects.

The reference implementation is GNU coreutils 8.32.

Layout

Each command has it's own separate subdirectory under src, in case the implementor wishes to create multiple .v files to implement a command, or add a README.md specifically for that command.

Developing

Please use the common module for command line/help handling. This will make the command input/output consistent across the tools.

Building

Running make or v run build.vsh will build all the programs in bin/. Use JOBS=N make or v run build.vsh --cpus=N to compile in parallel.

Note: support for access to user account info (via utmp) is limited to POSIX-like platforms. And, so, for Windows, utilities requiring utmp support (uptime, users, who, whoami) are currently skipped during the default build process.

Contributing

Contributions are welcome!

Please only contribute versions of the original utilities written in V. Contributions written in other languages will likely be rejected.

When your contribution is finalized, don't forget to update the completed count below and mark it as done in this README.md. Thanks!

NOTE: When testing on Windows, comparison tests are currently run against uutils/coreutils, a Rust re-implementation of GNU coreutils. They are not 100% compatiable. If you encounter different behaviors, compare against the true GNU coreutils version on the Linux-based tests first.

Completed (76/109) - 69% done!

Done	Cmd	Descripton	Windows
✓	[	Alternate form of test	✓
✓	arch	Print machine hardware name
✓	b2sum	Print or check BLAKE2 digests	✓
✓	base32	Transform data into printable data	✓
✓	base64	Transform data into printable data	✓
✓	basename	Strip directory and suffix from a file name	✓
✓	basenc	Transform data into printable data	✓
✓	cat	Concatenate and write files	✓
	chcon	Change SELinux context of file	✓
	chgrp	Change group ownership
	chmod	Change access permissions
	chown	Change file owner and group
	chroot	Run a command with a different root directory
✓	cksum	Print CRC checksum and byte counts	✓
✓	comm	Compare two sorted files line by line	✓
	coreutils	Multi-call program	✓
✓	cp	Copy files and directories	✓
	csplit	Split a file into context-determined pieces	✓
✓	cut	Print selected parts of lines	✓
	date	Print or set system date and time	✓
	dd	Convert and copy a file	✓
	df	Report file system disk space usage
	dir	Briefly list directory contents
	dircolors	Color setup for ls	✓
✓	dirname	Strip last file name component	✓
	du	Estimate file space usage	✓
✓	echo	Print a line of text	✓
✓	env	Run a command in a modified environment	✓
✓	expand	Convert tabs to spaces	✓
✓	expr	Evaluate expressions	✓
✓	factor	Print prime factors	✓
✓	false	Do nothing, unsuccessfully	✓
✓	fmt	Reformat paragraph text	✓
✓	fold	Wrap input lines to fit in specified width	✓
✓	groups	Print group names a user is in
✓	head	Output the first part of files	✓
✓	hostid	Print numeric host identifier
✓	hostname	Print or set system name
✓	id	Print user identity
	install	Copy files and set attributes
	join	Join lines on a common field	✓
	kill	Send a signal to processes	✓
✓	link	Make a hard link via the link syscall	✓
✓	ln	Make links between files	✓
✓	logname	Print current login name	✓
✓	ls	List directory contents
✓	md5sum	Print or check MD5 digests	✓
✓	mkdir	Make directories	✓
✓	mkfifo	Make FIFOs (named pipes)	✓
	mknod	Make block or character special files	✓
✓	mktemp	Create temporary file or directory	✓
✓	mv	Move (rename) files	✓
	nice	Run a command with modified niceness
✓	nl	Number lines and write files	✓
✓	nohup	Run a command immune to hangups	✓
✓	nproc	Print the number of available processors	✓
✓	numfmt	Reformat numbers	✓
	od	Write files in octal or other formats	✓
✓	paste	Merge lines of files	✓
	pathchk	Check file name validity and portability	✓
	pinky	Lightweight finger
	pr	Paginate or columnate files for printing	✓
✓	printenv	Print all or some environment variables	✓
✓	printf	Format and print data	✓
	ptx	Produce permuted indexes	✓
✓	pwd	Print working directory	✓
✓	readlink	Print value of a symlink or canonical file name	✓
	realpath	Print the resolved file name	✓
✓	rm	Remove files or directories	✓
✓	rmdir	Remove empty directories	✓
	runcon	Run a command in specified SELinux context	✓
✓	seq	Print numeric sequences	✓
✓	sha1sum	Print or check SHA-1 digests	✓
✓	sha224sum	Print or check SHA-2 224 bit digests	✓
✓	sha256sum	Print or check SHA-2 256 bit digests	✓
✓	sha384sum	Print or check SHA-2 384 bit digests	✓
✓	sha512sum	Print or check SHA-2 512 bit digests	✓
✓	shred	Remove files more securely	✓
✓	shuf	Shuffling text	✓
✓	sleep	Delay for a specified time	✓
✓	sort	Sort text files	✓
	split	Split a file into pieces	✓
✓	stat	Report file or file system status
	stdbuf	Run a command with modified I/O stream buffering
	stty	Print or change terminal characteristics
✓	sum	Print checksum and block counts	✓
✓	sync	Synchronize cached writes to persistent storage	✓
✓	tac	Concatenate and write files in reverse	✓
✓	tail	Output the last part of files	✓
	tee	Redirect output to multiple files or processes	✓
✓	test	Check file types and compare values	✓
✓	timeout	Run a command with a time limit
✓	touch	Change file timestamps	✓
	tr	Translate, squeeze, and/or delete characters	✓
✓	true	Do nothing, successfully	✓
✓	truncate	Shrink or extend the size of a file	✓
	tsort	Topological sort	✓
✓	tty	Print file name of terminal on standard input
✓	uname	Print system information	✓
✓	unexpand	Convert spaces to tabs	✓
✓	uniq	Uniquify files	✓
✓	unlink	Remove files via the unlink syscall	✓
✓	uptime	Print system uptime and load
✓	users	Print login names of users currently logged in
	vdir	Verbosely list directory contents
✓	wc	Print newline, word, and byte counts	✓
	who	Print who is currently logged in
✓	whoami	Print effective user ID	✓
✓	yes	Print a string until interrupted	✓

Windows ✓ if the utility exists in the Windows version of GNU coreutils.