Script `clamav.sh` calls command `lockfile` which is offered by `procmail`, but `procmail` is not part of base system on most Linux systems. Also, BSD systems offer `lockf` in base system. https://github.com/abusech/URLhaus/blob/master/clamav.sh#L17
Script
clamav.shcalls commandlockfilewhich is offered byprocmail, butprocmailis not part of base system on most Linux systems. Also, BSD systems offerlockfin base system.https://github.com/abusech/URLhaus/blob/master/clamav.sh#L17