Serverside script that compiles a list of IPs with blank UAs?

[JAB Creations]

I'm looking for a serverside script that will let me scan my access logs and list IP addresses that have no useragent. That way I can look the IP addresses up in known spam lists and block via .htaccess what I don't like. Any suggestions?

John

[dcrombie]

Using *ix and the standard combined_log format, you can run this from the command-line or put it in a shell script:

awk -F\" '($6 ~ /^-?$/){print}' combined_log ¦ awk '{print $1}' ¦ sort ¦ uniq

;)

[JAB Creations]

Umm...can I do this on shared hosting? I'm not rich and famous just yet. ;-D