Some files may grow indirectly from uucp and other BNU activities.
/usr/lib/cron/log should be checked and deleted if it has become too large.
This file is a log of cron activities.
While it grows with use, it is automatically truncated
when the system goes
to the multi-user state.
Cleaning up log files
uudemon.clean is a shell script that should be invoked
daily by cron to clean up uucp's spool directory and
to consolidate and dispose of the log files that currently exist
for uucp.
Currently, uudemon.clean uses two
techniques to clean up the log files.
The technique used depends on the type of file to be cleaned up:
Multi-day (multi) technique
Three days of logs are kept
in files called Old-1, Old-2, and
Old-3.
Whenever uudemon.clean is run, Old-2 is
renamed Old-3, Old-1 is renamed Old-2, and the
current log is renamed Old-1 and stored in
/var/spool/uucp/.Old/Old-1.
Single-day (single) technique
The current log
is moved to /var/spool/uucp/.Old.
This means that the log is preserved for one day only (assuming that
uudemon.clean is run daily).
Although uudemon.clean does take care of removing old log
entries, as an administrator, you should monitor the size of
the log files.
The exact procedure uudemon.clean uses
to remove old log entries varies according to the
type of log file.
Here's a description of how the uucp
log files will be cleaned up.