Although a lot of file transfer is now handled using HTTP, FTP is still commonly used to transfer files behind the scenes for other applications -- e.g., hidden behind the user interfaces of banking, a service that helps build a website, such as Wix or SquareSpace, or other services.
Yes, there is a utility to read log files named LogRead. LogRead is a GUI utility to read, query, sort, merge and translate log files from all Progress components (e.g. AdminServer, AppServer, Messenger). It is provided as a diagnostic utility to assist in the analysis of log files. LogRead 1.1 is now available as source and can be downloaded from:
The correct way to maintain your log files is with Squid's rotate feature. You should rotate your log files at least once per day. The current log files are closed and then renamed with numeric extensions (.0, .1, etc). If you want to, you can write your own scripts to archive or remove the old log files.