coreutils
Rust Easyuutils/coreutils
23,033 stars
1,812 forks
55 open issues
Active Apr 2026
Beginner-Friendly Issues 55
Issues tagged for new contributors
regression: broken argument passing when using qemu with 0.8.0 armv7l coreutils
#11703 · Apr 7, 2026
cat: overkilled fcntl() call with multiple input
#11700 · Apr 7, 2026
cat: overkilled pipe() call with multiple input
#11698 · Apr 7, 2026
U - cat
`tee`: early return on short first read breaks pipes (regression in 0.8.0)
#11693 · Apr 7, 2026
U - tee
yes: missing from wasm playground
#11692 · Apr 7, 2026
U - yes
What is the difference between coreutils and busybox?
#11690 · Apr 7, 2026
pathchk --version => paste (uutils coreutils) 0.8.0
#11688 · Apr 6, 2026
0.8.0 fail to compile uu_stty (lib) on ppc64le
#11687 · Apr 6, 2026
U - stty
dd: zero multiplier warning is printed even when zero is the multiplicand
#11672 · Apr 6, 2026
U - dd
numfmt: `--format='%.0f'` (precision 0) ignored when scaling with `--to`
#11667 · Apr 5, 2026
U - numfmt good first issue fuzzing
numfmt: `--to-unit` uses unscaled value to pick SI/IEC prefix
#11666 · Apr 5, 2026
U - numfmt good first issue fuzzing
numfmt: zero-padded `--format` places padding before the sign for negative numbers
#11664 · Apr 5, 2026
U - numfmt good first issue fuzzing
U - numfmt good first issue fuzzing
U - numfmt good first issue fuzzing
U - date good first issue fuzzing
date: %#P case-swap flag incorrectly uppercases already-lowercase alt specifier
#11659 · Apr 5, 2026
U - date good first issue fuzzing
date: strftime ignores flags and widths on %N (nanoseconds)
#11658 · Apr 5, 2026
U - date good first issue fuzzing
date: strftime flags propagate into composite specifiers (%-D, %-F, …)
#11657 · Apr 5, 2026
U - date good first issue fuzzing
date: strftime O modifier leaks as literal in C locale
#11656 · Apr 5, 2026
U - date good first issue fuzzing
numfmt: accepts scientific notation (e.g. `1e9`) where GNU rejects as invalid suffix
#11655 · Apr 5, 2026
U - numfmt good first issue fuzzing
numfmt: large integers lose precision (f64 rounding) vs GNU
#11654 · Apr 5, 2026
U - numfmt good first issue fuzzing
U - numfmt good first issue fuzzing
cat: no fallback if pipe() failed
#11634 · Apr 4, 2026
cat: investigate non-splice() zero-copy for file/FUSE input
#11628 · Apr 4, 2026
U - cat
tests/mkfifo: test_create_one_fifo_already_exists failed
#11626 · Apr 3, 2026
U - mkfifo
clippy: wasm32-wasip1 target fails
#11619 · Apr 3, 2026
tests/uucore: build failure
#11617 · Apr 3, 2026
uu timeout is less precise than GNU timeout
#11615 · Apr 3, 2026
U - timeout good first issue reported-canonical-2
`chmod` and `chown` do not detect symlink cycles
#11614 · Apr 3, 2026
U - chown U - chmod U - chgrp good first issue reported-canonical-2
Difference in offsets for `od --strings -N`
#11613 · Apr 3, 2026
U - od good first issue reported-canonical-2
Oniguruma (used by uu expr) panics on backtracking regexes
#11612 · Apr 3, 2026
U - expr reported-canonical-2
uu shred has a different probability distribution of overwrites from GNU shred
#11611 · Apr 3, 2026
U - shred good first issue reported-canonical-2
wc: wc -c does not optimize stdin as input by metadata
#11610 · Apr 3, 2026
U - wc
tail: splice fast-path for -c +N
#11607 · Apr 3, 2026
U - tail
cat, wc: CodSpeed cannot benchmark pipe()'s RAM usage used by splice fast-path
#11597 · Apr 2, 2026
U - cat U - wc
pr --column=0 /etc/pacman.conf success
#11584 · Apr 1, 2026
U - pr
cut: pipe reads fully buffered where GNU allows line-based buffering
#11581 · Apr 1, 2026
U - cut
dd bs=0 panics (attempt to divide by zero)
#11580 · Apr 1, 2026
U - dd
df -m no longer works
#11565 · Mar 31, 2026
U - df
ln: manpage enumerates forms under EXTRA without examples
#11564 · Mar 31, 2026
U - ln
who: `who -b` produces no output if `/var/run/utmp` is missing
#11559 · Mar 31, 2026
U - who
dd of=/dev/stdout cause Illegal seek
#11557 · Mar 31, 2026
U - dd
dd takes a really long time to allocate memory with large buffers (tested with 1G)
#11544 · Mar 30, 2026
U - dd
`dd iflag=nonblock` doesn't work with stdin (fd 0)
#11543 · Mar 30, 2026
U - dd
`ls -lF` (--classify) symlink target indicator missing
#11542 · Mar 29, 2026
U - ls
split: support copy_file_range and splice fast-path
#11539 · Mar 29, 2026
U - split
uu_install should overwrite files like GNU coreutils
#11532 · Mar 28, 2026
U - install
dd: Port splice fast-path from cat
#11519 · Mar 27, 2026
U - dd
nohup: support Windows
#11514 · Mar 26, 2026
P - Windows U - nohup
test_tr::test_broken_pipe_no_error failure
#11498 · Mar 25, 2026
U - tr
od -j1 /dev/null fails
#11494 · Mar 25, 2026
U - od
head: splice fast-path for -c
#11491 · Mar 25, 2026
U - head
nice: support Windows (cygwin compat Windows Priority Class wrapper)
#11490 · Mar 25, 2026
U - nice
ls -f shows . and .. first
#11487 · Mar 25, 2026
U - ls
Bump MSRV to 1.93
#11475 · Mar 24, 2026