Clam AntiVirus: Daemon 1.4.3
           By The ClamAV Team: https://www.clamav.net/about.html#credits
           (C) 2024 Cisco Systems, Inc.

    clamd [options]

    --help                   -h             Show this help
    --version                -V             Show version number
    --foreground             -F             Run in foreground; do not daemonize
    --debug                                 Enable debug mode
    --log=FILE               -l FILE        Log into FILE
    --config-file=FILE       -c FILE        Read configuration from FILE
    --fail-if-cvd-older-than=days           Return with a nonzero error code if virus database outdated
    --datadir=DIRECTORY                     Load signatures from DIRECTORY
    --pid=FILE               -p FILE        Write the daemon's pid to FILE

Pass in - as the filename for stdin.