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Top Forums Shell Programming and Scripting Shell script to copy a log file if it exceeds 5000000 bytes Post 302484931 by lookinginfo on Monday 3rd of January 2011 05:05:31 PM
Old 01-03-2011
Question

so far i have come up with the following
Code:
TODAY=`date +%d/%m/%y`
CURTIME=`date +%H:%M:%S`
 
#go to that directory
cd /local/home/userid/logs
 
#check the file size
ls -ltr sw_warn.log > sw_warn_filesize.txt
export file_size=`awk -F" " '{ print $5 }' sw_warn_filesize.txt`
 
# if greater than 5000000, then create a directory and copy the file. 
if [[ $file_size > 5000000 ]]
then
today_dir=mkdir TODAY_CURTIME
cp sw_warn.log /local/home/userid/logs/today_dir
 
#Instead of deleting the file, how to null sw_warn.log file
???

#remove this file
rm sw_warn_filesize.txt
else 
exit 0
fi

-------------------------------------------

We don't know your system.
Are the files open by an application at the time of the log file maintenance slot?

[me] yes these files are open by the apps
(If so, don't delete them, null them!).
[me] how?

Please show sample directory lists of every directory listed.
[me] the directory path is /local/home/userid/logs. under logs directory, i have three files
sw_warn.log
sw_error.log
eaijava.log


What is the maximum growth rate of the files? This determines how often to check.

[me] - i don't know the growth rate. btw, how to scheudle the shell script which keep checking the file size and run the script

Are there any disc space issues?
[me] no disc space issue.

Last edited by Franklin52; 01-04-2011 at 04:23 AM.. Reason: Please use code tags
 

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FAXCRON(8)						      System Manager's Manual							FAXCRON(8)

NAME
faxcron - HylaFAX routine maintenance script SYNOPSIS
/usr/sbin/faxcron [ -n ] [ -l lastrun ] DESCRIPTION
faxcron is a command script that does routine upkeep tasks in a HylaFAX spooling directory hierarchy. This script is intended to be invoked from cron(8) on behalf of the fax user (often the ``fax'' user is uucp) once a day, with the standard output sent by mail to the HylaFAX administrator. For example, the following crontab might be set up for the fax user: 25 23 * * * sh /usr/sbin/faxcron | mail FaxMaster The faxcron script does the following work: o report statistics for facsimile transmitted since the last time faxcron was run. o report statistics for facsimile transmitted in the past week. o report statistics for facsimile received since the last time faxcron was run. o report statistics for facsimile received in the past week. o report any recent calls that failed suspiciously and return the associated trace log; o purge data that is 30 days or older from the remote machine information directory; o delete information that is 30 days or older from session trace log files; o remove files from the tmp directory that are older than 1 day; o remove files in the received facsimile queue that are 7 days or older; o report sites that are currently having jobs rejected; and o force all session log files to be owned by the fax user and kept with protection mode 644. OPTIONS
-n Forces faxcron to run without updating any files. -l lastrun Forces the notion of the last time that faxcron was run to be lastrun. The value of lastrun is a date and time string of the form ``MM/DD/YY HH:MM'' (the date(1) format string ``%D %H:%M''). -info n Set the expiration time for data in the info database to be n days. -log n Set the expiration time for session log data to be n days. -rcv n Set the expiration time for files in the received facsimile queue to be n days. -tmp n Set the expiration time for files in the tmp directory to be n days. -mode m Set the file protection mode for session logs to m (a command line argument to chmod(1)). NOTES
This script requires nawk(1) or gawk(1) and a date (1) program that supports the ``+format'' option. If session logs are to be kept private this script must be modified to filter out sensitive information such as calling card numbers. (It should also be run with ``-mode 0600'' so that session log files are not publicly readable.) FILES
/var/spool/hylafax spooling area /var/spool/hylafax/status/lastrun timestamp of last run /usr/sbin/xferfaxstats for generating transmit statistics /usr/sbin/recvstats for generating receive statistics /var/spool/hylafax/tmp/faxcronXXXX temporary file for truncating session logs /var/spool/hylafax/tmp/faxlogXXXX temporary file for logs of failed calls SEE ALSO
cron(8), faxq(8), faxgetty(8), faxsend(8), xferfaxstats(8), recvstats(8), hylafax-server(5) May 12, 1996 FAXCRON(8)
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