cron script to rotate log files Post: 302306936

Sponsored Content

Top Forums Shell Programming and Scripting cron script to rotate log files Post 302306936 by pludi on Tuesday 14th of April 2009 09:01:34 AM

04-14-2009

Registered User

These look like something generated by cron or similar:

daily_out.log
monthly.out
weekly.out

This is used by the login management system and should never be rotated or otherwise modified manually:

lastlog

Probably used by the UI and/or for support issues:

windowserver.log
SerialNumberSupport.log
crashreporter.log

Probably generated by a script:

rsync_backup.log

No clue:

asl.log
servermgrd.log
ppp.log
secure.log

Quote:

Originally Posted by timgolding

[...]
How can i find out which process has a handle open to that log file? If i can find out which deamon uses which log I can at least research into what the mechanism might be for each one?

Just look through the config files for the daemons you're using to check what files they're writing to. And the mechanism needed is usually noted in the man page (or other shipped documentation). If there's no explicit information about signal involved, better play it save and just restart the daemon.

Last edited by pludi; 04-14-2009 at 10:02 AM.. Reason: Better readability

pludi

View Public Profile for pludi

Find all posts by pludi

10 More Discussions You Might Find Interesting

1. HP-UX

Check size and rotate log script.

Hi Can you suggest some perl script. My OS is HP-UX 11.11 I want to it into a cron job. Every night it will backup the file with that day's date and open a dummy file. Thanks Ash

2. Shell Programming and Scripting

how to rotate log files

hi friends i need a shell script to rotate the logs in a directory, dated n days back. can anybody of help. appreciate..

3. UNIX for Advanced & Expert Users

log rotate

hi , what is the meaning of log rotate? how do i rotate /var/adm/wtmps log and gzip it?

4. Shell Programming and Scripting

Script for Log Rotate

Hello, I only know the basic for shell programing. I need help for this, I thinks this is a basic for anyone who know a litle of shell scripting. I need creat a script for a rotatate logs, when a filesystem is full. I have a filesystem. The rotate consist in zip the current log (copy) and...

5. Shell Programming and Scripting

Rotate log files

I have a big log,separated by the character:, one of the fields is the date in the format "day / month / year" and I need to remove the lines prior to 30 days. Can help me?

6. Shell Programming and Scripting

Rotate log everyday on existing script

quick question: I have a current script that will put the output on a log file. See snapshot of the code below. I wanted this to be rotated everyday based on date. So if anyone execute the script today there will be a filecreated such as sys.log.(datetoday), if tomorrow it would be...

7. Shell Programming and Scripting

"Customized" log rotate script - some advice please

Hi, Am trying to write my own version of a log rotate scripts 'coz I don't have the logrotate for other flavors of *nix servers. Probably should try and download the source and re-compile but our SA don't want to do so. Anyway, just want to know if there is any way to improve on the code...

8. Shell Programming and Scripting

Help with a rotate log script

Hi all, Am trying to write my own log rotate script. Curremtly, what I have is as below: #!/bin/ksh file_to_rotate=${1} x=${2} while ] do let curr=${x} let prev=${x}-1 if ] ; then #echo "cp -p ${file_to_rotate} ${file_to_rotate}.${curr}" cp -p...

9. Shell Programming and Scripting

Script to rotate file log

Hi Experts, I have script on crontab and give output quite large. I would like to know how to create rotate log when the size of log maximum 50MB if the test.log is 50MB then create test.0 Thanks Edy

10. Shell Programming and Scripting

Log rotate

Hi, I have below script in logrotate.d to rotate logs. logs are not rotating after the file grow to 1k, do you have any idea? Is it because of it just only 1K? Please let me know if the below syntax is in correct. # more trotate /sourcepath/*/servers/*/logs/*log...

LEARN ABOUT DEBIAN

torrus_monitor

TORRUS_MONITOR(8)						      torrus							 TORRUS_MONITOR(8)

NAME

       monitor - Torrus Monitor.

SYNOPSIS

       torrus monitor --tree=TREENAME [options...]

DESCRIPTION

       This command starts the Monitor process for the tree TREENAME. By default it forks into a daemon, sets the log output file to
       /var/log/torrus/monitor.TREENAME.log, performs one monitoring cycle, and sleeps until the next cycle is scheduled. In daemon mode the log
       file can be reopened by sending it a SIGHUP signal.

OPTIONS

       --nodaemon
	   Prevents the process from becoming a daemon and sets the log to STDERR.

       --runonce
	   Instructs the script to run once and exit. Implies --nodaemon.

       --delay=N
	   Makes the daemon sleep for N minutes before starting the first cycle.  This would happen on the daemon startup and also after each
	   configuration recompilation.  For example, when monitor and collector start simultaneously, the collector needs some time to retrieve
	   the data being monitored.

       --debug
	   Sets the log level to debug.

       --verbose
	   Sets the debug level to info.

       --help
	   Displays a help message.

FILES

       /etc/torrus/conf/torrus-siteconfig.pl
	   Torrus site configuration script.

       /var/log/torrus/monitor.TREENAME.log
	   Monitor's log for the tree TREENAME.

SEE ALSO

       torrus(8)

NOTES

       See more documentation at Torrus home page: http://torrus.org

AUTHOR

       Stanislav Sinyagin <ssinyagin@yahoo.com>

torrus 2.03							    2013-07-26							 TORRUS_MONITOR(8)