complete -c zcat -x -a "( __fish_complete_suffix (commandline -ct) .gz 'Compressed file' __fish_complete_suffix (commandline -ct) .tgz 'Compressed archive' ) " complete -c zcat -s f -l force -d (_ "Overwrite") complete -c zcat -s h -l help -d (_ "Display help and exit") complete -c zcat -s L -l license -d (_ "Print license") complete -c zcat -s V -l version -d (_ "Display version and exit")