logrotate

# see "man logrotate" for details
# rotate log files weekly
weekly

# keep 4 weeks worth of backlogs
rotate 4

# create new (empty) log files after rotating old ones
create

# uncomment this if you want your log files compressed
#compress

# RPM packages drop log rotation information into this directory
include /etc/logrotate.d

# no packages own wtmp -- we'll rotate them here
/var/log/wtmp {
    monthly
    create 0664 root utmp
    rotate 1
}

# system-specific logs may be also be configured here. 

а в /etc/logrotate.d для конкретных логов.

что-то типа:

/etc/logrotate.d/prelink

/var/log/prelink.log {
    missingok
    notifempty
} 

/my/super/logs/*/*_log { missingok notifempty }

Надеюсь понятен кусочек...

/my/super/logs/*/*_log {
    missingok
    notifempty
}