How to make logrotate keep the last week into the current .log

log-fileslogrotate

Is it possible to get logrotate to keep the last week of logs in the current file?

for example :

errors.log contains 30 days of logs

after log rotate executes , I would have :

errors.log with the last 7 days of log

and

errors.log.1.gz compressed with the 23 other days.

Is that possible?

Best Answer

weekly
rotate 4
compress

followed by a postrotate script doing something like (untested):

TMP=$(mktemp)
zcat /var/log/errors.log.{4,3,2,1}.gz > $TMP
mv $TMP /var/log/errors.log.1
gzip /var/log/errors.log.1

Cheers.

Related Solutions

Logrotate compress only last n logs

I think there is no such option for logrotate to do it directly. Only one relevant option is delaycompress which delay the compression by one log rotate cycle (one day in your case). Possibly, you can make use of the compresscmd option by writing a shell script to check how many log files you have so far and compress/uncompress the files you want.

Another possibility is to schedule a daily cron job to run a script to check your log files and compress/uncompress what you want.

Mail logs files as attachments with sendmail

If I understand your question correctly, there's a logrotate option that will do what you want. Simply add mail user@yourdomain.com as one of the configuration options, like this:

/var/log/httpd/*log {
    mail user@yourdomain.com
    ...

This will mail you the log files that are about to be rotated.

Perhaps you've tried this and it didn't quite do what you need. In that case, I think you're on the right track for the most part. However, invoking sendmail directly isn't the right approach when you're trying to send a message with attachments. To quote the sendmail FAQ:

How do I create attachments with sendmail?

You don't. Sendmail is a mail transfer agent (MTA). Creating e-mail messages, including adding attachments or signatures, is the function of a mail user agent (MUA). Some popular MUAs include mutt, elm, exmh, Netscape, Eudora and Pine. Some specialized packages (metamail, some Perl modules, etc.) can also be used to create messages with attachments.

If you have the mail user agent mutt (or can install it), it should be able to do what you want. Try something like this:

/var/log/httpd/*log {
    firstaction
       echo | mutt -s "Log files for `date`" user@yourdomain.com -a /var/log/httpd/*log
    endscript
    ...

Note also in your example configuration file you're missing the endscript for your firstaction command.

Best Answer

Related Solutions

Logrotate compress only last n logs

Mail logs files as attachments with sendmail

How do I create attachments with sendmail?

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