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Full Discussion: "sed" to check file size & echo " " to destination file
Top Forums Shell Programming and Scripting "sed" to check file size & echo " " to destination file Post 302145308 by jockey007 on Tuesday 13th of November 2007 07:45:01 PM
Old 11-13-2007
Hi Porter,

The output of
root@WiMAX-BS:/var/log ls -ld /var/log/messages
-rw------- 1 root root 41994 Jan 23 03:16 /var/log/messages

==========

Well.. I was thinking like
1) use the ls command grab the size value using the sed and
2) then if it is greater than 128KB, do an echo " " > /var/log/messages

Now I've crond support, so I can add a script with above logic to cron job.

Thanks
Jay
 

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LEARN ABOUT REDHAT

sa2

SA2(8)								Linux User's Manual							    SA2(8)

NAME

       sa2 - Write a daily report in the /var/log/sa directory.

SYNOPSIS

       /usr/lib/sa/sa2

DESCRIPTION

       The  sa2  command  is  a shell procedure variant of the sar command which writes a daily report in the /var/log/sa/sardd file, where the dd
       parameter indicates the current day. The sa2 command handles all of the flags and parameters of the sar command.

       The sa2 command is designed to be started automatically by the cron command.

EXAMPLES

       To run the sa2 command daily, place the following entry in your root or adm crontab file:

       5 19 * * 1-5 /usr/lib/sa/sa2 -A &

       This will generate a daily report called /var/log/sa/sardd It will also remove reports more than one week old.

FILES

       /var/log/sa/sardd
	      Indicate the daily report file, where the dd parameter is a number representing the day of the month.

AUTHOR

       Sebastien Godard <sebastien.godard@wanadoo.fr>

SEE ALSO

       sar(1), sadc(8), sa1(8), mpstat(1), iostat(1), vmstat(8)

       http://perso.wanadoo.fr/sebastien.godard/

Linux								   DECEMBER 1999							    SA2(8)
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