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Full Discussion: Shell script to copy a log file if it exceeds 5000000 bytes
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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LEARN ABOUT OSF1

log

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

NAME

       log - Records input and output from a program

SYNOPSIS

       /usr/sbin/log <logfile> <command>

OPERANDS

       The file in which to record the interaction being logged.  The command to execute.

DESCRIPTION

       The  log  program  runs <command> and logs the input to and output from <command> to the <logfile> file.  Input and output are logged until
       <command> exits, the log program exits, and the exit status of <command> is returned.

       The log program is used by the system  installation  procedure  and  the  it(8)	command  to  create  the  /var/adm/smlogs/install.log  and
       /var/adm/smlogs/it.log installation log files.

RESTRICTIONS

       Because	the  log  program is used in the installation standalone environment, program size was the greatest concern in its implementation.
       The log program does not search for the PATH variable to locate <command> and error messages are terse.

       The log program causes <command> to take standard input from and write standard output and standard error to  UNIX  pipes.   Some  commands
       will  not  be able to operate in this environment; therefore, it is suggested that you use the script(1) command instead.  UNIX shells will
       not issue prompts when run from log unless the shell is started with an explicit interactive switch (-i for most shells).  For example, log
       foo.tmp /sbin/sh -i

       In the previous example, foo.tmp is the name of <logfile>.

       The  log  program  intercepts  end-of-file (usually Ctrl/d).  Therefore programs which normally receive end-of-file as an exit command must
       exit by some other means.

ERRORS

       Log open error

   Explanation:
       The log program was unable to open <logfile>. Verify that the directory exists and that ownerships and permissions are set correctly.

       Exec Error

   Explanation:
       The log program was unable to execute <command>. Verify that you specified a full pathname for <command> and  that  <command>  is  an  exe-
       cutable file.

       Fork Error

   Explanation:
       The log program was unable to create one of the processes it requires to log data.

SEE ALSO

       Commands: it(8), script(1)

																	    log(8)
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