Log rotation daily

[Fenglin]

Hi

I would like to do a daily log rotation for the script attached. Anyone can help ?

Regards
Feng Lin

[R.K. #]

HI Fenglin,

We can use cron.
# crontab -e

[Fenglin]

Sorry

The current script just run a single file and keeps appending to the same file daily.

It is not producing a daily file itself. That is what I intend to do.

Regards
Feng Lin

[R.K. #]

Hi Again,

log_file=log_`date +%Y%m%d%H%M`_readSMS.txt

So this says that everytime the script runs, it will produce a new file like log_200912022232_readSMS.txt.

So, if you do not want new file to be created, you should remove `date +%Y%m%d%H%M` above.

[Fenglin]

Hi R K

The objective is, Once the script runs, it produces a daily logfile. The logfile logrotates every day with the timestamp. There is no interference manually. Currently, the file just keeps on appending to the file produced.

FYI,the process is meant to run 24*7.

Do you get what I mean?

Regards
Feng Lin

[Yogeeraj_1]

hi,
You will have to restart the java process daily so that the line:

log_file=log_`date +%Y%m%d%H%M`_readSMS.txt

be effective.

otherwise, the system will continue logging to the same file as at the date/time it was launched.

If not feasible, you will have to write another script that backups the log file and truncates the current one.

hope this helps!

kind regards
yogeeraj

[Arturo Galbiati]

You could use teh logrotate program.
read this URL:
http://forums11.itrc.hp.com/service/forums/questionanswer.do?admit=109447626+1259916930385+28353475&threadId=1326387

HTH,
Art

[Viktor Balogh]

you could define an OUTFILE variable like this:

OUTFILE=/path/to/logs/log_$(date +%Y%m%d%H%M)

after that run your app like this:

if [ "$my_process" = "" ]
then
nohup java $JAVA_JVM -Xms128m \
-Xmx128m -verbose:gc -XX:PermSize=64m \
-XX:MaxPermSize=64m -XX:SurvivorRatio=6 \
com.nsp.sms.batch.ReadSMSBatch \
1>> ${OUTFILE} 2>> ${OUTFILE} &
fi

...but you need to start it over every day to refresh the value of the variable $OUTFILE