[Bug 1971425] Re: The "look" cli dictionary only sees capitalized words

[Heinrich Schuchardt]

The same behavior can be seen in Ubuntu 23.04.

The look command requires a sorted file.
If no argument is given /usr/share/dict/words is used as default file and the f flag is set.
/usr/share/dict/words is sorted with upper case preceding lower case.
But when the f flag is set a sort ignoring case is assumed.

So the command look works as documented.

It is simply that the sort sequence of /usr/share/dict/words does not
match what look needs.

You can create your own wordlist, sort it to your needs, and point
environment variable WORDLIST to it.

$ cat /usr/share/dict/american-english | sort > foo
$ WORDLIST=foo look accicent
accident
accidental
accidentally
accidental's
accidentals
accident's
accidents

I would suggest not to change anything in util-linux.

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https://bugs.launchpad.net/bugs/1971425

Title:
  The "look" cli dictionary only sees capitalized words

Status in util-linux package in Ubuntu:
  Confirmed

Bug description:
  In Ubuntu 20.04;
  ~ > look accident
  accident
  accident's
  accidental
  accidental's
  accidentally
  accidentals
  accidents
  In Ubuntu 22.04;
  ~ > look accident
  (nothing)
  ~ > look acc
  Accenture
  Accenture's
  Accra
  Accra's
  Digging deeper; the dictionary at /usr/share/dict/words seems OK.
  If I copy the "look" binary from Ubuntu 20.04 and use it on Ubuntu 22.04 it works;
  ~ > ./look accident
  accident
  accidental
  accidentally
  accidental's
  accidentals
  accident's
  accidents

  ProblemType: Bug
  DistroRelease: Ubuntu 22.04
  Package: bsdextrautils 2.37.2-4ubuntu3
  ProcVersionSignature: Ubuntu 5.15.0-27.28-generic 5.15.30
  Uname: Linux 5.15.0-27-generic x86_64
  ApportVersion: 2.20.11-0ubuntu82
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CurrentDesktop: XFCE
  Date: Tue May  3 14:19:57 2022
  InstallationDate: Installed on 2018-09-07 (1334 days ago)
  InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
  SourcePackage: util-linux
  UpgradeStatus: Upgraded to jammy on 2022-05-01 (2 days ago)

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