uutils/coreutils

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Cross-platform Rust rewrite of the GNU coreutils

Stars: 24.1k
Forks: 2k
Open beginner issues: 66
Indexed issues: 760
Avg merge: 1d 5h
Merged PRs (30d): 365

Dominant language: Rust
License: MIT
Last GitHub push: Sep 19, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue

Beginner friendly Everything

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756 open issues indexed

perf(date): Slower than GNU Open

U - date

Difficulty 4/5 3-5 days Newbie friendliness 35/100

uutils/coreutils#14750 · Opened Sep 20, 2026
bug(ls): Time Style not accept abbreviated, acronyms Open

U - ls

Difficulty 2/5 1-3 hours Newbie friendliness 70/100

uutils/coreutils#14730 · Opened Sep 19, 2026
bug(ls): Time Style Parser Edge Cases (Part 1) Open

U - ls

Difficulty 4/5 3-5 days Newbie friendliness 48/100

uutils/coreutils#14727 · Opened Sep 19, 2026
bug(ls): Invalid UTF8 quoting style not get a warning Open

U - ls

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

uutils/coreutils#14725 · Opened Sep 19, 2026
GNU coreutils 9.12: remaining test failures - Sept 2026 Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

uutils/coreutils#14705 · 4 comments · Opened Sep 19, 2026
uucore: fs feature fails to compile on redox Open

Difficulty 3/5 1-2 days Newbie friendliness 72/100

uutils/coreutils#14704 · 1 comment · Opened Sep 19, 2026
dd: seek=0 still seeks, erroring on non-seekable files Open

U - dd

Difficulty 3/5 1-2 days Newbie friendliness 72/100

uutils/coreutils#14696 · 1 comment · Opened Sep 18, 2026
test_follow_when_files_are_pointing_to_same_relative_file_and_file_stays_same_size intermittent failure Open

U - tail

Difficulty 4/5 3-5 days Newbie friendliness 52/100

uutils/coreutils#14694 · 1 comment · Opened Sep 18, 2026
test_follow_name_truncate4 intermittent failure Open

U - tail

Difficulty 3/5 1-2 days Newbie friendliness 68/100

uutils/coreutils#14693 · Opened Sep 18, 2026
Missing information in the man page for tr Open

U - tr

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

uutils/coreutils#14688 · Opened Sep 18, 2026
bug(stat): invalid unicode file not escaped, they replaced with U+FFFD Open

U - stat

Difficulty 3/5 1-2 days Newbie friendliness 55/100

uutils/coreutils#14685 · Opened Sep 18, 2026
gnucompability(date): hence is not supported by uu Open

U - date

Difficulty 3/5 1-2 days Newbie friendliness 52/100

uutils/coreutils#14683 · Opened Sep 18, 2026
bug(date): Ignore next when a full date provided instead of trying Next against the date Open

U - date

Difficulty 3/5 1-2 days Newbie friendliness 65/100

uutils/coreutils#14681 · 1 comment · Opened Sep 18, 2026
gnucompability(date): Edge Cases (Part 3) Open

U - date

Difficulty 5/5 Over a week Newbie friendliness 35/100

uutils/coreutils#14680 · Opened Sep 18, 2026
bug(date): date does not respect -u when `+%c` Open

U - date

Difficulty 3/5 1-2 days Newbie friendliness 64/100

uutils/coreutils#14679 · Opened Sep 18, 2026
date: date -s doesn't display the date Open

U - date

Difficulty 3/5 1-2 days Newbie friendliness 65/100

uutils/coreutils#14677 · Opened Sep 18, 2026
bug(date): Mixing flags part 2, accepted Open

U - date

Difficulty 3/5 1-2 days Newbie friendliness 62/100

uutils/coreutils#14676 · Opened Sep 18, 2026
bug(date): mixing -d with -s accepted, gnu rejects it Open

U - date

Difficulty 3/5 1-2 days Newbie friendliness 64/100

uutils/coreutils#14674 · Opened Sep 18, 2026
date: date doesn't accept spaces after month Open

U - date

Difficulty 2/5 1-3 hours Newbie friendliness 82/100

uutils/coreutils#14649 · Opened Sep 17, 2026
date: date doesn't accept dates with missing years Open

U - date

Difficulty 3/5 1-2 days Newbie friendliness 78/100

uutils/coreutils#14648 · Opened Sep 17, 2026
POSIXLY_CORRECT is ignored for option parsing: options after operands are still parsed Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

uutils/coreutils#14621 · Opened Sep 16, 2026
Support hostname on AIX Open

U - hostname

Difficulty 4/5 3-5 days Newbie friendliness 25/100

uutils/coreutils#14618 · Opened Sep 16, 2026
Haiku, incorrect pointer type on statvfs Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

uutils/coreutils#14607 · 2 comments · Opened Sep 16, 2026
feat: date does not support dots, gnu does in 9.11 Open

U - date

Difficulty 3/5 1-2 days Newbie friendliness 68/100

uutils/coreutils#14604 · Opened Sep 16, 2026
feat: add --env0-from option to env Open

U - env

Difficulty 4/5 3-5 days Newbie friendliness 42/100

uutils/coreutils#14602 · 1 comment · Opened Sep 16, 2026
gnucompatibility(date): +%f treated differently, gnu vs uu Open

U - date

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

uutils/coreutils#14600 · Opened Sep 16, 2026
mv: cross-device leaf chowns by path, contradicting the comment above it (GNU uses fchown) Open

U - mv

Difficulty 3/5 1-2 days Newbie friendliness 68/100

uutils/coreutils#14599 · Opened Sep 16, 2026
mv: cross-device move drops the rest of the xattrs after one failure, and reports success Open

U - mv

Difficulty 3/5 1-2 days Newbie friendliness 76/100

uutils/coreutils#14598 · Opened Sep 16, 2026
sync FILE hangs because of a USB disk I/O errors, applies global sync for no apparent reasons. Open

U - sync

Difficulty 3/5 1-2 days Newbie friendliness 30/100

uutils/coreutils#14591 · Opened Sep 16, 2026
cksum: binary with aws-lc is 2.4 MB smaller than vendored openssl & md5 and sha1 are faster Open

U - cksum

Difficulty 4/5 3-5 days Newbie friendliness 52/100

uutils/coreutils#14563 · 3 comments · Opened Sep 14, 2026
`uucore` and `env` do not build for `wasm32-wasip2` when used as a library / standalone Open

U - env

Difficulty 4/5 3-5 days Newbie friendliness 68/100

uutils/coreutils#14561 · Opened Sep 14, 2026
nohup: programs that are waiting for stdin exit with 0 instead of 1 Open

U - nohup

Difficulty 3/5 1-2 days Newbie friendliness 70/100

uutils/coreutils#14556 · 2 comments · Opened Sep 14, 2026
nohup: support wasi using process::Command::new(*)....status() Open

U - nohup

Difficulty 4/5 3-5 days Newbie friendliness 38/100

uutils/coreutils#14544 · Opened Sep 14, 2026
uucore: perms imports safe_traversal unconditionally, breaking aix/hurd/redox builds Open

Difficulty 4/5 3-5 days Newbie friendliness 68/100

uutils/coreutils#14537 · 3 comments · Opened Sep 13, 2026
test_install_and_strip intermittent failure Open

U - install

Difficulty 3/5 1-2 days Newbie friendliness 48/100

uutils/coreutils#14520 · Opened Sep 12, 2026
date: --file flag outputs different date on EOF of empty file in stdin mode Open

U - date

Difficulty 3/5 1-2 days Newbie friendliness 68/100

uutils/coreutils#14498 · Opened Sep 10, 2026
env: a NUL byte in a `--file` entry reaches `std::env::set_var` unvalidated and aborts the process (exit 134) Open

U - env

Difficulty 2/5 1-3 hours Newbie friendliness 82/100

uutils/coreutils#14490 · 1 comment · Opened Sep 10, 2026
nice, Windows: support mapping current Priority Class Open

P - Windows U - nice

Difficulty 3/5 1-2 days Newbie friendliness 74/100

uutils/coreutils#14484 · Opened Sep 9, 2026
uucore: translations not found in `findutils` (and probably other projects) Open

J - Locale

Difficulty 3/5 1-2 days Newbie friendliness 68/100

uutils/coreutils#14478 · 3 comments · Opened Sep 9, 2026
fmt: `--tab-width`/`-T` has no upper bound — arithmetic overflow aborts at multiple sites (exit 134) Open

U - fmt

Difficulty 3/5 1-2 days Newbie friendliness 68/100

uutils/coreutils#14460 · 2 comments · Opened Sep 8, 2026
df: the `--total` row sums per-filesystem rounded-up block counts — wrong totals in release, `attempt to multiply with overflow` with `-h` (exit 134) Open

U - df

Difficulty 3/5 1-2 days Newbie friendliness 78/100

uutils/coreutils#14459 · Opened Sep 8, 2026
mode: comma-separated mode strings accept forms GNU rejects Open

Difficulty 4/5 3-5 days Newbie friendliness 72/100

uutils/coreutils#14421 · Opened Sep 7, 2026
tr: a large `[c*n]` repeat count is materialized unbounded — `capacity overflow` panic / allocation abort (exit 134) Open

U - tr

Difficulty 4/5 3-5 days Newbie friendliness 58/100

uutils/coreutils#14420 · Opened Sep 7, 2026
printf: a malformed \u or \U in a %b argument drops characters and exits 0 Open

U - printf

Difficulty 3/5 1-2 days Newbie friendliness 70/100

uutils/coreutils#14404 · Opened Sep 6, 2026
unexpand: a plain over-large `--tabs`/`-t` value overflows (overflow-checks) or runs away (release) in the tab-conversion output path Open

U - unexpand

Difficulty 3/5 1-2 days Newbie friendliness 74/100

uutils/coreutils#14378 · Opened Sep 4, 2026
sort aborts instead of exiting non-zero when a temp-file write fails during external-sort spill Open

U - sort

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

uutils/coreutils#14377 · Opened Sep 4, 2026
tests: cargo test doesn't run stty tests Open

U - stty

Difficulty 2/5 1-3 hours Newbie friendliness 75/100

uutils/coreutils#14370 · Opened Sep 3, 2026
uudoc: add a feature to write mans and completions to the directory Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

uutils/coreutils#14363 · Opened Sep 3, 2026
tail: arithmetic overflow (overflow-checks) on `-c -N` with N = 2^63 (i64::MIN negate) Open

U - tail

Difficulty 2/5 1-3 hours Newbie friendliness 88/100

uutils/coreutils#14353 · Opened Sep 2, 2026
date: case flags ^ and # don't match GNU on %c %p %P %r %Z Open

U - date

Difficulty 3/5 1-2 days Newbie friendliness 84/100

uutils/coreutils#14351 · Opened Sep 2, 2026

uutils/coreutils

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