Hi, I just discovered a printf bug for at least the nb_NO and nn_NO locales when printing numbers with thousands separator. To reproduce: #!/bin/bash for l in de_DE en_US nb_NO ; do    echo "LC_NUMERIC=$l.UTF-8"    for n in 1 100 1000 10000 100000 1000000 10000000 ; do       LC_NUMERIC=$l.UTF-8 /usr/bin/printf "<%'10d>\n" $n    done done The expected output of "%'10d" is a right-formatted number string with 10 characters. The output of the test script is fine for e.g. LC_NUMERIC=de_DE.UTF-8 and LC_NUMERIC=en_US.UTF-8: LC_NUMERIC=de_DE.UTF-8 <         1> <       100> <     1.000> <    10.000> <   100.000> < 1.000.000> <10.000.000> LC_NUMERIC=en_US.UTF-8 <         1> <       100> <     1,000> <    10,000> <   100,000> < 1,000,000> <10,000,000> However, for LC_NUMERIC=nb_NO.UTF-8 and LC_NUMERIC=nn_NO.UTF-8, the formatting is wrong: LC_NUMERIC=nb_NO.UTF-8 <         1> <       100> <   1 000> <  10 000> < 100 000> <1 000 000> <10 000 000> LC_NUMERIC=nn_NO.UTF-8 <         1> <       100> <   1 000> <  10 000> < 100 000> <1 000 000> <10 000 000> I reproduced the issue with coreutils-8.32-4.1ubuntu1.1 (Ubuntu 22.04) as well as coreutils-9.3-5.fc39.x86_64 (Fedora 39). Under FreeBSD 14.0-RELEASE (coreutils-9.4_1), the output looks slightly better but is still wrong: LC_NUMERIC=nb_NO.UTF-8 <         1> <       100> <    1 000> <   10 000> <  100 000> <1 000 000> <10 000 000> LC_NUMERIC=nn_NO.UTF-8 <         1> <       100> <    1 000> <   10 000> <  100 000> <1 000 000> <10 000 000> May be the issue is that the thousands separator for the Norwegian locales is a space " ", while it is "."/"," for German/US English locales. -- Best regards / Mit freundlichen Grüßen / Med vennlig hilsen ======================================================================= Thomas Dreibholz Simula Metropolitan Centre for Digital Engineering Centre for Resilient Networks and Applications Pilestredet 52 0167 Oslo, Norway ----------------------------------------------------------------------- E-Mail:dreibh@simula.no Homepage:http://simula.no/people/dreibh =======================================================================