logrotate.sh

   1 #!/bin/sh
   2
   3 # rotate the messages file if >= 4M
   4
   5 if [ -f /var/log/messages ] ; then
   6 mess_size=`du -h /var/log/messages | sed 's/\/var\/log\/messages//' | sed 's/.*k/0/' | awk -F. '{ print $1 }'`
   7 if [ "$mess_size" -gt "3" ] ; then
   8         d_stamp=`date | awk '{ print $3 "-" $2 "-" $6 }'`
   9         mv /var/log/messages /var/log/messages-${d_stamp}
  10         gzip /var/log/messages-${d_stamp}
  11         echo "rotated /var/log/messages file."
  12 fi
  13 fi
  14
  15 if [ ! -f /var/log/messages ] ; then
  16         touch /var/log/messages
  17         echo "touched new /var/log/messages file."
  18         /etc/init.d/syslogd restart
  19 fi
  20