The clamscan tool is a stand-along utility that runs without clamd being installed and and isn't aware of and doesn't use or need any of the clamd or clamdscan configurations. It does read the freshclam.conf file to learn where the signatures are stored. The command line accepts a rich assortment of arguments that will allow it to do a great many things. Using it is frequently best done with command aliases and shell scripts.

Using a trace utility when executing it will reveal what it does when it starts. In the Red Hat Linux family this can be done by running the following command:

strace clamscan -l /tmp/clamscan.log /path 2>&1 | less

where path is the file or directory you wish to scan. The trace is piped to less so you can page through the results. The log is created in /tmp/clamscan.log and is owned by the current user. The more clamscan arguments you provide the longer will be the strace report and the log. Note too that clamscan runs as the current user, so it may not see all you wish nor log where you wish, based on file system permissions. It also has to load the entire signature set each time it is run.

dp

On 11/16/16 11:07 AM, Fouts, Christopher wrote:
The docs show the following example when running clamscan (NOT clamdscan)

$ clamscan –r –l scan.txt /some_path

How can I configure the log file in the /etc/clamd.d/scan.conf file for 
clamscan, not for clamdscan? I see

# Uncomment this option to enable logging.
# LogFile must be writable for the user running daemon.
# A full path is required.
# Default: disabled
LogFile /var/log/clamav/clamd.scan

…but that references the log file for clamdscan (the daemon). And indeed if I 
run clamscan I don’t see logs in that file.

Chris

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