Checking the space for /archlog mount point script

Question

I have the below shell script which is checking /archlog mount point space on cappire(solaris 10) server. When the space usage is above 80% it should e-mail. When i tested this script it is working as expected.
#!/usr/bin/ksh
export MAIL_LIST="[email protected]"
export ARCH_STATUS=`df -k /archlog | awk '{ print $5 }' | grep -v Use%`
echo $ARCH_STATUS
if [[ $ARCH_STATUS > 80% ]]
then echo "archive destination is $ARCH_STATUS full please contact DBA"
echo "archive destination /archlog is $ARCH_STATUS full on Cappire." | mailx -s "archive destination on cappire is $ARCH_STATUS full" $MAIL_LIST
else
exit 1
fi
exit
When i scheduled a cron job it is giving different result. Right now /archlog is 6%, it should exit without e-mailing anything. But, i am getting the below e-mail from cappire server which is strange.
subject:archive destination on cappire is capacity
below is the e-mail content.
6% full
Content-Length: 62
archive destination /archlog is capacity 6% full on Cappire.
Please help me in resolving this issue - why i am getting the above e-mail, i should not get any e-mail with the logic.
Is there any issue with the cron. Please let me know.

Answer 1

user01 wrote:
I have the below shell script which is checking /archlog mount point space on cappire(solaris 10) server. When the space usage is above 80% it should e-mail. When i tested this script it is working as expected.
#!/usr/bin/ksh
export MAIL_LIST="[email protected]"
export ARCH_STATUS=`df -k /archlog | awk '{ print $5 }' | grep -v Use%`
echo $ARCH_STATUS
if [[ $ARCH_STATUS > 80% ]]
then echo "archive destination is $ARCH_STATUS full please contact DBA"
echo "archive destination /archlog is $ARCH_STATUS full on Cappire." | mailx -s "archive destination on cappire is $ARCH_STATUS full" $MAIL_LIST
else
exit 1
fi
exit
When i scheduled a cron job it is giving different result. Right now /archlog is 6%, it should exit without e-mailing anything. But, i am getting the below e-mail from cappire server which is strange.
subject:archive destination on cappire is capacity
below is the e-mail content.
6% full
Content-Length: 62
archive destination /archlog is capacity 6% full on Cappire.
Please help me in resolving this issue - why i am getting the above e-mail, i should not get any e-mail with the logic.
Is there any issue with the cron. Please let me know.Not a problem with cron, but possibly an issue with the fact that you are doing a string comparison on something that you are thinking of as a number.
Also, when I'm piping a bunch of stuff together and get unexpected results, I find it useful to break it down at a command line to confirm that each step is returning what I expect.
df -k /archlog
df -k /archlog | awk '{ print $5 }'
df -k /archlog | awk '{ print $5 }' | grep -v Use%
A common mistake is to forget that jobs submitted from cron don't source the owning user's .profile. You need to make sure the script takes care of setting its environment, but that doesn't look to be the issue for this particular problem.