Public bug reported:
Summary
The uutils implementation of ls produces different ordering than GNU ls
when sorting by name and hidden files are present.
Environment
Ubuntu 26.04
Package: coreutils-from-uutils
ls version: uutils coreutils 0.8.0
Expected behavior
Sorting using:
ls -a1 --sort=name
should produce the same ordering as GNU ls.
Actual behavior
The ordering differs from GNU ls.
Minimal reproduction
mkdir test-ls-sort
cd test-ls-sort
touch .alpha .bravo .charlie .delta
touch .BOINC .adobe .android .bashrc
mkdir Activities
mkdir Desktop
mkdir Downloads
Compare:
gnuls -a1 --sort=name
and
ls -a1 --sort=name
GNU ls output begins with:
.
..
Activities
.adobe
.alpha
.android
.bashrc
.BOINC
.bravo
.charlie
.delta
Desktop
Downloads
uutils ls output begins with:
.
..
.BOINC
.adobe
.alpha
.android
.bashrc
.bravo
.charlie
.delta
Activities
Desktop
Downloads
The results differ despite both commands using --sort=name.
Additional information
The issue is reproducible on multiple Ubuntu 26.04 systems.
GNU ls and uutils ls are installed on the same systems and can be
compared directly.
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: coreutils-from-uutils 0.0.0~ubuntu25
ProcVersionSignature: Ubuntu 7.0.0-29.29-generic 7.0.12
Uname: Linux 7.0.0-29-generic x86_64
ApportVersion: 2.34.1-0ubuntu0.1
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: KDE
Date: Fri Aug 14 12:01:20 2026
InstallationDate: Installed on 2017-10-04 (3236 days ago)
InstallationMedia: Kubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
PackageArchitecture: all
SourcePackage: coreutils-from
UpgradeStatus: Upgraded to resolute on 2026-08-09 (5 days ago)
modified.conffile..etc.default.apport: [modified]
mtime.conffile..etc.default.apport: 2020-03-07T06:19:51.554722
** Affects: coreutils-from (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute wayland-session
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https://bugs.launchpad.net/bugs/2163478
Title:
uutils ls produces different name sorting than GNU ls for hidden files
and directories
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