Filesystem alert shell script not working!!

Shell Programming and Scripting
1

Hi All,

My below shell script is not capturing %used value in the filesystem alert in the subject of the mail alert:

#!/bin/bash

export DBALIST="abc@xyz.com"

df -k /oradata/xyz/archive > dfk.result
archive_capacity=`awk -F" " '{ print $5 }' dfk.result|grep -i %| cut -c 1-4`
if [[ $archive_capacity > 60% ]]
then
mailx -s "Filesystem /oradata is ${archive_capacity} filled" $DBALIST < dfk.result
fi

Existing output in the subject mail alert is:

"Filesystem /oradata is Use% filled"

Expected output in the subject mail alert should be:

"Filesystem /oradata is 61% filled"

Anyone could please suggest what's wrong here!

Thanks for your time!

Regards,

2

Change the line above to:

archive_capacity=`grep -v File dfk.result | awk -F" " '{ print $5 }' | cut -c 1-4`

HTH

3

If your 'df -k' command has this header, then when you search for %, it picks out the first one.

Filesystem           1K-blocks      Used Available Use% Mounted on

archive_capacity=`awk -F" " '{ print $5 }' /tmp/dfk.result`
echo $archive_capacity
archive_capacity=`echo $archive_capacity|grep -i %| cut -c 1-4`
echo $archive_capacity

Output:

Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/sdb1            244124256  16086488 228037768   7% /var/local
Use% 7%
Use%

Changing your cut command to this will give you the number (may have to play with this a bit)

archive_capacity=`awk -F" " '{ print $5 }' dfk.result`
echo $archive_capacity
archive_capacity=`echo $archive_capacity|grep -i %| cut -c 6-8`
echo $archive_capacity

Output:

Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/sdb1            244124256  16086792 228037464   7% /var/local
Use% 7%
7%
4

better yet, skip that intermediate step of outputting to a file and then reading back in:

#!/bin/bash

export DBALIST="abc@xyz.com"

archive_readout=$(df -k /oradata/xyz/archive |egrep "^Filesystem|\%" )
archive_capacity=$(df -k /oradata/xyz/archive |awk '{ print $5 }' |grep -i % |sed 's/%//g' )
if [[ $archive_capacity > 60 ]]
then
   print ${archive_readout} |mailx -s "Filesystem /oradata is ${archive_capacity}% filled" $DBALIST 
fi
5

interesting - since I didn't have /oradata/xyz/archive to test with, I changed it to either /var or /home. My /home is at 5% - yet the script still sent an email - the ORIGINAL script has other issues... would have mention this earlier but email was real slow!

Curleb - your changes work as far as getting the numbers right - for some reason I got errors on the print/mailx line (on Linux) - no big deal

6

Hmmm...works for me on Solaris10, ksh.

...with local filesystems too, of course...