Extracting unique user-agents from Apache combined logfile

How do I do it?

[mikomido]

I run Unix, so basically, I am trying to "cat httpd-access.log" and then grep or something to get a list of all unique user-agents.

The reason? I want to see what bots are visiting my site.

[ogletree]

Just get one of many log file programs. They all have a user agent section.

[vincevincevince]

Agree. Webalizer will run well from the command prompt as a one-off process if required.