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Top Forums Shell Programming and Scripting script to monitor disk space usage Post 302322530 by amitranjansahu on Thursday 4th of June 2009 03:43:07 AM
Old 06-04-2009
Bug script to monitor disk space usage

Some times my disk space is used upto 100% due to the application logs .

So this script is to monitor the disk space usage and wall message to the users about the disk space usage if it exceeds the limit set in the script. Here for example the limit is set to 80%. This job is added in cron to execute in a time frame.

I am using this on solaris machines . You can adopt it on any unix/linux machine.

Code:
#!/bin/ksh
# This script checks the percentage of disk usuage and  walls messages if its greater then 80%
typeset -i error="80"
if [ -e diskusage.txt ]; 
then
rm diskusage.txt 
fi
if [ -e diskusage1.txt ];
then
rm diskusage1.txt 
fi
for disc in `df -h| egrep '^/dev' | egrep -iv 'cdrom|proc|sys|pts' |awk '{print $6}'`
do
  /usr/sbin/df -h $disc| cut -c46-47|grep -i [1-9] >> diskusage1.txt 
discUsage=`cat diskusage1.txt `
rm diskusage1.txt 
if [ "$discUsage" -ge "$error" ];
then
echo "Disc usage for $disc is at $discUsage%" >> diskusage.txt 
fi
done
if [ -e diskusage.txt ]; 
then
message=`cat diskusage.txt` 
fi
if [ ${#message} -gt 0 ]; 
then
  cat diskusage.txt | wall
fi

 

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space(4)							   File Formats 							  space(4)

NAME
space - disk space requirement file DESCRIPTION
space is an ASCII file that gives information about disk space requirements for the target environment. The space file defines space needed beyond what is used by objects defined in the prototype(4) file; for example, files which will be installed with the installf(1M) command. The space file should define the maximum amount of additional space that a package will require. The generic format of a line in this file is: pathname blocks inodes Definitions for the fields are as follows: pathname Specify a directory name which may or may not be the mount point for a filesystem. Names that do not begin with a slash ('/') indicate relocatable directories. blocks Define the number of disk blocks required for installation of the files and directory entries contained in the pathname (using a 512-byte block size). inodes Define the number of inodes required for installation of the files and directory entries contained in the pathname. EXAMPLES
Example 1: A sample file. # extra space required by config data which is # dynamically loaded onto the system data 500 1 SEE ALSO
installf(1M), prototype(4) Application Packaging Developer's Guide SunOS 5.10 7 Feb 1997 space(4)
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