Quote:

# Eggdrop is capable of logging various things, from channel chatter to
# commands people use on the bot and file transfers. Logfiles are normally
# kept for 24 hours. Afterwards, they will be renamed to "(logfile).yesterday".
# After 48 hours, they will be overwritten by the logfile of the next day.
#
# Events are logged by certain categories. This way, you can specify
# exactly what kind of events you want sent to various logfiles.
#
# Logfile flags:
# b - information about bot linking and userfile sharing
# c - commands
# d - misc debug information
# h - raw share traffic
# j - joins, parts, quits, and netsplits on the channel
# k - kicks, bans, and mode changes on the channel
# m - private msgs, notices and ctcps to the bot
# o - misc info, errors, etc (IMPORTANT STUFF)
# p - public text on the channel
# r - raw incoming server traffic
# s - server connects, disconnects, and notices
# t - raw botnet traffic
# v - raw outgoing server traffic
# w - wallops (make sure the bot sets +w in init-server)
# x - file transfers and file-area commands

You may not need a scripted solution at all. If any of the above logs what you need, simply setup the eggdrop.conf file.