gnucompatibility(date): +%f treated differently, gnu vs uu

Open Beginner friendly
#14,600 0 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Assessment

Difficulty
2/5
Estimated time
1-3 hours
Newbie friendliness
68/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Active
Tech stack
rust
Domain
cli

Research direction

Start by reproducing the reported commands, comparing the uutils date output for +%f with gnudate +%f. Trace the date formatting implementation from the date command entry point and identify how the %f directive is handled. Done means the behavior is consistent with the intended GNU compatibility result and is covered by a regression test.

Written by the indexing model from the issue text.

Description

U - date

Hi, uutils mainteners, i hope you doing well

I saw a divergence between gnu and uu

relunsec@relunsec:~/software/coreutils/target/debug$ ./date +%f
63213001
relunsec@relunsec:~/software/coreutils/target/debug$ ./date +%f
993492453
relunsec@relunsec:~/software/coreutils/target/debug$ ./date +%f
345293349
relunsec@relunsec:~/software/coreutils/target/debug$ ./date +%f
700997118
relunsec@relunsec:~/software/coreutils/target/debug$ ./date +%f
123982302
relunsec@relunsec:~/software/coreutils/target/debug$ ./date +%f
481038326
relunsec@relunsec:~/software/coreutils/target/debug$ ./date +%f
809741571
relunsec@relunsec:~/software/coreutils/target/debug$ ./date +%f
145789226
relunsec@relunsec:~/software/coreutils/target/debug$ gnudate +%f
%f

That is the weird behavior of uu, everytime i get a random number, i want hear is it a feature or a weird problem?

Dominant language
Rust
Stars
24.1k
Forks
2k
Avg merge
1d 4h
Merged PRs (30d)
371

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

More from uutils/coreutils

All issues in uutils/coreutils

Similar issues

More Rust issues

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.