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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68 beginner-friendly issues open

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): 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
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
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
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
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
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
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
env: -v / -vv don't trace environment changes Open

U - env

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

uutils/coreutils#14171 · Opened Aug 27, 2026
dd: a zero factor no longer short-circuits the multiplier Open

U - dd

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

uutils/coreutils#14160 · Opened Aug 26, 2026
seq -w: positive exponents in scientific-notation operands produce wrong padding width (leading zero not cancelled) Open

U - seq

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

uutils/coreutils#14153 · 1 comment · Opened Aug 26, 2026
numfmt panics (str char-boundary) on a number using a multibyte locale decimal separator before a multibyte char and a suffix Open

U - numfmt

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

uutils/coreutils#13937 · Opened Aug 14, 2026
minorbug(dd): status= errors not quoted Open

U - dd

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

uutils/coreutils#13868 · Opened Aug 11, 2026
Replace filetime crate with std library Open

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

uutils/coreutils#13808 · 2 reactions · Opened Aug 8, 2026
split: arithmetic overflow (overflow-checks) on a huge `--numeric-suffixes`/`--hex-suffixes` start value Open

U - split

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

uutils/coreutils#13749 · Opened Aug 5, 2026
mktemp: permission denied error strip Open

U - mktemp

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

uutils/coreutils#13720 · 6 comments · Opened Aug 2, 2026
coreutils: remove hack for busybox test suite Open

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

uutils/coreutils#13343 · Opened Jul 10, 2026
`install -D file /file` fails and loses the file when the destination's parent is / Open

U - install

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

uutils/coreutils#13232 · Opened Jun 30, 2026
CI: unify GnuTests.yml and fuzzing.yml to use latest GNU coreutils Open

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

uutils/coreutils#13200 · Opened Jun 29, 2026
csplit: error doesn't exit program Open

U - csplit

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

uutils/coreutils#13139 · 1 comment · Opened Jun 28, 2026
tail /dev/null --pid 0 --follow should open /dev/null with O_NONBLOCK Open

U - tail

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

uutils/coreutils#13109 · 1 comment · Opened Jun 26, 2026
bug(uptime): when using `/dev/mem` no errors Open

U - uptime

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

uutils/coreutils#13091 · Opened Jun 26, 2026
dd: output when skip beyond input file differs from the gnu dd Open

U - dd

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

uutils/coreutils#13047 · Opened Jun 23, 2026
cat: strange ioctl call (no need for the case without arg?) Open

U - cat

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

uutils/coreutils#13045 · Opened Jun 23, 2026
cat: get_input_type() must be function of fd instead of path to avoid TOCTOU race Open

U - cat

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

uutils/coreutils#13042 · Opened Jun 23, 2026
bug(install): when using --context in Non Selinux kernel, it does not warn Open

U - install

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

uutils/coreutils#12986 · Opened Jun 19, 2026
bug(mkfifo): when using --context in Non Selinux kernel, it does not warn Open

U - mkfifo

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

uutils/coreutils#12983 · Opened Jun 19, 2026
bug(dd): when iseek= is a very large number it panics Open

U - dd

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

uutils/coreutils#12848 · Opened Jun 13, 2026
bug(dd): when skip= is a very large number it panics Open

U - dd

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

uutils/coreutils#12846 · Opened Jun 13, 2026
bug(dd): when seek= is a very large number it panics Open

U - dd

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

uutils/coreutils#12845 · Opened Jun 13, 2026
bug(dd): when count= is a very large number it panics Open

U - dd

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

uutils/coreutils#12843 · Opened Jun 13, 2026
ls: -T=0xff should be rejected while -T 0xff is accepted Open

U - ls

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

uutils/coreutils#12841 · 2 comments · Opened Jun 13, 2026
bug(kill): when using -l with $'\xFF' no errors reported Open

U - kill

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

uutils/coreutils#12816 · Opened Jun 12, 2026
bug(ptx): panics when -g is a large number Open

U - ptx

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

uutils/coreutils#12787 · Opened Jun 11, 2026
bug(df): when using a/ reports incorrect error messages Open

U - df

Difficulty 2/5 1-3 hours Newbie friendliness 67/100

uutils/coreutils#12777 · Opened Jun 11, 2026
du panic (`into_string().unwrap`) on a non-UTF-8 filename in the dereferencing traversal Open

U - du

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

uutils/coreutils#12769 · Opened Jun 11, 2026
csplit: --suffix-format with a huge field width panics (Result::unwrap on a formatter error) Open

U - csplit

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

uutils/coreutils#12763 · 5 comments · 1 reaction · Opened Jun 11, 2026
cp: --sparse=always hangs if the source is truncated mid-copy Open

U - cp

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

uutils/coreutils#12648 · Opened Jun 5, 2026
cp: --sparse=always panics on 32-bit when the source is larger than 4 GiB Open

U - cp

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

uutils/coreutils#12647 · Opened Jun 5, 2026
bug: printf panic same as fixed for %d but %f not Open

U - printf

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

uutils/coreutils#12591 · Opened Jun 4, 2026
numfmt panics (index out of bounds) on a very large `--to=si`/`--to=iec` value Open

U - numfmt

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

uutils/coreutils#12581 · Opened Jun 4, 2026
csplit: panic on overflow in `{N}` repetition count and `/regex/OFF` offset Open

U - csplit

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

uutils/coreutils#12495 · 1 comment · Opened May 28, 2026
uucore::fs : outdated comment about nix/rustix Open

Difficulty 1/5 Under an hour Newbie friendliness 88/100

uutils/coreutils#12427 · Opened May 21, 2026
Man page for ln has mismatch between Synopsis and Extra sections Open

U - ln

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

uutils/coreutils#12366 · Opened May 18, 2026
mktemp dot-dot file prefix is silently dropped Open

U - mktemp

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

uutils/coreutils#12312 · 1 comment · 1 reaction · Opened May 15, 2026
incorrect localization type for chinese Open

J - Locale

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

uutils/coreutils#12305 · 6 comments · Opened May 15, 2026
wc: replace unsafe unchecked code by utf8_chunks Open

U - wc

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

uutils/coreutils#12229 · 2 comments · Opened May 11, 2026
Replace `NonrepeatingIterator` with `itertools::structs::Unique` Open

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

uutils/coreutils#12038 · Opened Apr 27, 2026
df: Is printing the raw string guarenteed to have the same cell width as using the lossy string? Open

U - df

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

uutils/coreutils#11987 · Opened Apr 24, 2026

uutils/coreutils

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