/usr/share/fish/completions/chown.fish is in fish-common 2.4.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 | complete -c chown -s c -l changes --description "Output diagnostic for changed files"
complete -c chown -l dereference --description "Dereference symbolic links"
complete -c chown -s h -l no-dereference --description "Do not dereference symbolic links"
complete -c chown -l from --description "Change from owner/group"
complete -c chown -s f -l silent --description "Suppress errors"
complete -c chown -l reference --description "Use same owner/group as file" -r
complete -c chown -s R -l recursive --description "Operate recursively"
complete -c chown -s v -l verbose --description "Output diagnostic for every file"
complete -c chown -s h -l help --description "Display help and exit"
complete -c chown -l version --description "Display version and exit"
complete -c chown --description "Username" -a "(__fish_print_users):"
complete -c chown --description "Username" -a "(echo (commandline -ct)| __fish_sgrep -o '.*:')(__fish_complete_groups)"
|