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

Author: HackingRepoCreated Sep 16, 2026Updated Sep 16, 2026

LabelsU - date

Hi, uutils mainteners, i hope you doing well

I saw a divergence between gnu and uu

rust

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?

Source: uutils/coreutils

View original on GitHub View discussion on GitHub