Thank you very muc, for your code. I'm searching for month now to find
something like that because I couldn't figure out how to do it myself.
Thanks a lot
----- Original Message -----
From: "Mike A. Harris" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Tuesday, August 15, 2000 1:55 PM
Subject: New useful 'logrotate' feature/addon.
> For quite some time I have wanted logrotate to offer something
> other than the existing filenaming scheme of renaming logs to:
>
> log.1
> log.2
>
> etc...
>
> I am interested in having rotated logs named instead with the
> date and time in the filename such as:
>
> messages
> messages-2000-05-01-0401.gz
> messages-2000-06-01-0401.gz
>
> It was a feature request of my current employer at the time, and
> I liked the idea very much. I tried to implement it via a
> postrotate script at the time, but they wanted it done on the
> production server against all of my opposition. You NEVER do
> development on live data, but I was FORCED to, and sure enough,
> the log files got destroyed, and I was to blame... <sigh>
>
> Well, that ended up relieving me of the duty of solving the
> problem despite the fact I likely WOULD HAVE if they'd let me do
> it MY WAY - the PROPER way - on a devel system. Heck, a few
> hours hacking is all it should have took. I asked Erik Troan
> (the author) if he could implement the feature, and he said if I
> implemented it he'd consider adding it (or something like that).
>
> Well, since I've been playing with logfile processing a lot
> lately, the idea came back to me, and I decided to give it a
> whirl. I got the logrotate source and looked at it. It seems
> the concept of rotated logs being named ".x" where x is a number
> is quite deeply intertwined into logrotate, so I figured I'd try
> it again using postrotate instead.
>
> After numerous frustrating attempts, I decided to look into the
> logrotate source code to see how postrotate was
> implemented. Basically, it takes all your script code, puts it
> in a temporary file and executes it with "#!/bin/sh". THAT WAS
> IT!!!!! I was using command substitution with $() syntax and
> "sh" doesn't grok that! I changed it around a bit, and
> determined that logrotate compresses the log files AFTER
> postrotate is executed. That meant it wouldn't work because I
> was renaming the rotated log... I then realized I could compress
> the log myself, and disable logrotate from doing it.
>
> As a result, I now have a cool logrotate config that can do
> exactly what I want, which is rotating the logs with the DATE
> appended to the filename instead of the .number scheme.
>
> Erik, I told you if I come up with a solution I'd send you a
> copy, and here it is.
>
> /var/log/messages {
> nocompress
> postrotate
> DATE_CODE=`date +"%Y-%m-%d-%H%M"`
> LOG_FILE=messages
> mv ${LOGFILE}.1 ${LOG_FILE}-$DATE_CODE
> gzip -9 ${LOG_FILE}-$DATE_CODE
> endscript
> }
>
> It isn't C source to add to the package, but it is functional
> config file syntax nonetheless. I'll bet that many out there are
> looking for similar functionality but are unable to figure it out
> easily enough. You're welcome to include my above example in any
> code or documentation for logrotate, HOWTO's, etc...
>
> In order to use it with different logs, modify the logfilename,
> and the LOG_FILE variable in the script section.
>
> Be forewarned though that I don't know how his works with ALL of
> logrotate's different features, so use it with CAUTION. If you
> use it, test it on DUMMY data, or copies of data, and not live
> log files!!! It works for me (tm), but it may explode and
> destroy the universe and all of your data! In particular, I'm
> curious as to wether or not it will work with the logrotate
> "olddir" directive or not.. Modification might be necessary.
>
> Anyways, I hope someone out there has a use for this. It makes
> things much easier for me!
>
> Take care,
> TTYL
>
> --
> Mike A. Harris Linux advocate
> Computer Consultant GNU advocate
> Capslock Consulting Open Source advocate
>
> Try out Red Hat Linux today: http://www.redhat.com
> ftp://ftp.redhat.com/pub/redhat/redhat-6.2/
>
>
>
>
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