Given two plain text files, I get this result: $ comm -3 <(sort file1) <(sort file2) >/dev/null comm: file 1 is not in sorted order comm: file 2 is not in sorted order comm: input is not in sorted order But if I make a slight modification, the result is: $ LANG=C comm -3 <(sort file1) <(sort file2) >/dev/null This appears to be due to both of the files containing a few non-ASCII characters (UTF-8). Either 'comm' or 'sort' (or both) don't seem to handle them properly. Fedora 41 x86_64, but I've seen the same thing previously. My searches don't reveal any previous complaints. Trying the same thing on my Raspberry Pi (bookworm) does not exhibit the problem. -- Dave Close, Compata, Irvine CA +1 714 434 7359 dave@xxxxxxxxxxx dhclose@xxxxxxxxxxxxxxxxxx "The Swiss Army coudn't open a wine bottle with Occam's razor." -- Jef Mallett (Frazz) -- _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue