09-30-2011
ok, let me explain it to you.
Lets say I have created a gc file in the format you suggested,
java ... -Xloggc:/path/gc-$(date +%Y%m%d-%H%M%S).log
This will identify when the log file started getting created, no problems till this point, now I want to archive this log file on daily basis, now the point to be considered is I am not going to restart the application everyday, so the gc log file will keep on getting written to the same date log file, isn't? (I guess you will agree), there is a cron job running which will archive the file everyday, lets consider today's date, we restarted the application, so the name of the log file will be somewhat like gc20110930.log, I want to archive it today at 23:59 PM done, now for tomorrow as the application has not been restarted, the gc logs will be written on the same log file gc20110930.log, tomorrow a cronjob runs again at 23:59 PM and the cron job will find the file with same name, it will archive the file in the same archive directory and as the name of the file is same available at the archive directory, it will overwrite the file, isn't? so just making the change in the name of the log file will not work.
Hope this helps.
Neeryan
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