Log Rotation Script for Tomcat Logs

[Ajin_1]

Hi Experts

we are using Apache Tomcat and the Log files are generated in one Log DIR in the below said format.

$ cd SSOlogs
$ ll
total 48
-rw-r--r--   1 dz900439   unyo          1854 Jan 18 20:15 filecreate.sh
drwxr-xr-x   2 dz900439   unyo          8192 Jan 21 16:25 madhutest
-rw-r--r--   1 dz900439   unyo           307 Jan 21 16:36 testmove.sh
-rw-r--r--   1 dz900439   unyo             0 Dec  1 10:10 tomcat.log.Dec1
-rw-r--r--   1 dz900439   unyo             0 Dec 10 10:10 tomcat.log.Dec10
-rw-r--r--   1 dz900439   unyo             0 Dec 11 10:10 tomcat.log.Dec11
-rw-r--r--   1 dz900439   unyo             0 Dec 12 10:10 tomcat.log.Dec12
-rw-r--r--   1 dz900439   unyo             0 Dec 13 10:10 tomcat.log.Dec13
-rw-r--r--   1 dz900439   unyo             0 Dec 14 10:10 tomcat.log.Dec14
-rw-r--r--   1 dz900439   unyo             0 Dec 15 10:10 tomcat.log.Dec15
-rw-r--r--   1 dz900439   unyo             0 Dec 16 10:10 tomcat.log.Dec16
-rw-r--r--   1 dz900439   unyo             0 Dec 17 10:10 tomcat.log.Dec17
-rw-r--r--   1 dz900439   unyo             0 Dec 18 10:10 tomcat.log.Dec18
-rw-r--r--   1 dz900439   unyo             0 Dec 19 10:10 tomcat.log.Dec19
-rw-r--r--   1 dz900439   unyo             0 Dec  2 10:10 tomcat.log.Dec2

Maximum number of days for logs to be deleted in one Month

find /home/dz900439/SSOlogs -type f -name "tomcat.*" -mtime +30 -exec cp /tmp/SSOlogs {} \;
echo "waiting for 30 secs"
sleep 10
#find /tmp/SSOlogs -type f -name "tomcat.*" -mtime +30 -exec /usr/contrib/bin/gzip {} \;
find /home/dz900439/SSOlogs -type f -name "tomcat.*" -mtime +30 -exec ls -l {} \; | wc -l
exit

I used the sample above said script

My reqirement was i want to keep 10 days log in the orginal location and move the old logs day by day or once in a week to some other location /tmp and zip the old logs in the /tmp and delete the log file.

Thanks in Advance.

[Dennis Handly]

>find /home/dz900439/SSOlogs -type f -name "tomcat.*" -mtime +30 -exec cp /tmp/SSOlogs {} \;

You need to swap the order: ... -exec cp {} /tmp/SSOlogs  \;

>My requirement was I want to keep 10 days log in the original location and ...

Older than 10 days?  Something like this:

TMP=/tmp/SSOlogs
LOGS=/home/dz900439/SSOlogs

mkdir -p $TMP

find $LOGS -type f -name "tomcat.*" -mtime +10 |  while read file; do
      base=${file##*/}
      /usr/contrib/bin/gzip -c $file > $TMP/$base.gz
      if [ $? -eq 0 ]; then
         # Keep same date
         touch -r $file $TMP/$base.gz
         rm -f $file
      fi
done

[Ajin_1]

Hi Dennis

Thanks for your reply .I checked the same script with test environment  .Its moving files from orginal location to /tmp and zip the files in /tmp location . I plan to put it into cron for sheduling ,how can i set how frequence in crontab?

0  0  *  *  *  /home/dz991173/logrotate.sh

[Dennis Handly]

>how can I set how frequently in crontab?

>00  00  *  *  *  /home/dz991173/logrotate.sh

(I recommend always using two digits so it lines up.)

This does it everyday at 0000, midnight:

MM HH DD mm DoW command

If you want it every 12 hours, use a comma to repeat:

00 00,12 * * * command ...