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RE: awk question

From: Srinivasan Vasan <Vasan.Srinivasan_at_churchill.com>
Date: Thu, 10 Jun 2004 09:52:26 +0100
Message-ID: <4661DD1EF5C4EF4B9D2BCE3A3E52EF3304C31E07@brcexm04.churchill.com> 





Time to implement some standards in your shell scripts. Always enclose
variable evaluations within double-quotes. For example, if [ "$variable" -gt
"10" ] will not produce the same error as if [ $variable -gt "10" ] when
variable happens to be unset. I personally prefer "${variable}" to make it
even more explicit.



Cheers, 



Vasan.



-----Original Message-----


From: David Green [mailto:thump_at_cosmiccooler.org] 
Sent: 09 June 2004 18:09


To: oracle-l_at_freelists.org


Subject: awk question



Thanks for the advice on the Darrell!


I am trying to implements and running into an issue.  Can you or anyone
else provide some additional guidance, it is much appreciated.



Here is what I have thus far:


#!/bin/ksh



SID=$1



cd /m1/homes/oracle


. ./$SID


export WARNING_THRESHHOLD=55


export CRITICAL_THRESHHOLD=65



export TBS_WARNING=`orastat -ts | awk '{print $10}' | grep -vi generic |
grep -vi pct | grep -vi === | grep -vi listed | grep -vi accurat`
export TBS_CRITICAL=`orastat -ts | awk '{print $10}' | grep -vi generic |
grep -vi pct | grep -vi === | grep -vi listed | grep -vi accurat`


export CHK_TBS_WARNING="$TBS_WARNING $WARNING_THRESHHOLD"
export CHK_TBS_CRITICAL="$TBS_CRITICAL $CRITICAL_THRESHHOLD"
export CHK_TBS_WARNING_EVAL=`echo $CHK_TBS_WARNING | awk '{if ($1 > $2)


print $1}'`


export CHK_TBS_CRITICAL_EVAL=`echo $CHK_TBS_CRITICAL | awk '{if ($1 > $2)
print $1}'`



if [ $CHK_TBS_CRITICAL_EVAL -gt 65 ]; then


       ./orastat -ts|mailx -s "TBS CRITICAL for $SID" dgreen-email
elif [ $CHK_TBS_WARNING_EVAL -gt 55 ]; then


       ./orastat -ts|mailx -s "TBS WARNING for $SID" dgreen-email
fi



I receive the following, when trying to run:
./check_tbs.sh[18]: test: argument expected
./check_tbs.sh[20]: test: argument expected



I think it is because the CHK_TBS_WARNING_EVAL and CHK_TBS_CRITICAL_EVAL
systax I'm using is not working.  I think that is due to the tbs percents
are being returned as a row of numbers and thus the comparision of $1 > $2
is no good:



+ SID=SDTEST01


+ cd /m1/homes/oracle

+ . ./SDTEST01


+ test



/bin:/sbin:/usr/sbin:/usr/bin:/usr/local/bin:/usr/local/sony-bin:/usr/local/
etc:/usr/ucb:/usr/bin/X11:/usr/dt/bin:/usr/openwin/bin:/opt/SUNWspro/bin:/us
r/ccs/bin:.


= X


+ ORACLE_SID=SDTEST01


+ ORACLE_BASE=/opt/app/oracle

+ ORACLE_HOME=/opt/app/oracle/product/9.2.0.4

+ ORACLE_PATH=/opt/app/oracle/product/9.2.0.4/bin

+ ORACLE_TERM=vt100

+ INIT=/opt/app/oracle/admin/SDTEST01/pfile/initSDTEST01.ora

+ ALERT=/opt/app/oracle/admin/SDTEST01/bdump/alert_SDTEST01.log

+ BDUMP=/opt/app/oracle/admin/SDTEST01/bdump

+ CDUMP=/opt/app/oracle/admin/SDTEST01/cdump

+ UDUMP=/opt/app/oracle/admin/SDTEST01/udump

+ OSCRIPTS=/opt/app/oracle/scripts

+ TNS_ADMIN=/var/opt/oracle



+


PATH=/usr/ccs/bin:/opt/app/oracle/product/9.2.0.4/bin:/opt/app/oracle/produc
t/9.2.0.4:/bin:/sbin:/usr/sbin:/usr/bin:/usr/local/bin:/usr/local/sony-bin:/
usr/local/etc:/usr/ucb:/usr/bin/X11:/usr/dt/bin:/usr/openwin/bin:/opt/SUNWsp
ro/bin:/usr/ccs/bin:.


+


LD_LIBRARY_PATH=/opt/app/oracle/product/9.2.0.4/lib:/opt/app/oracle/product/
9.2.0.4/jdbc/lib:/usr/openwin/lib:/usr/dt/lib:/usr/lib:/lib


+ export LD_LIBRARY_PATHPATH OSCRIPTS UDUMP CDUMP BDUMP INIT ALERT TNS_ADMIN

+ export ORACLE_BASE ORACLE_HOME ORACLE_PATH ORACLE_SID ORACLE_TERM

+ alias alert=tail -500 $ALERT|more

+ PS1=\u@\h_at_SDTEST01>

+ export WARNING_THRESHHOLD=55

+ export CRITICAL_THRESHHOLD=65

+ orastat -ts

+ awk {print $10}

+ grep -vi generic

+ grep -vi pct

+ grep -vi ===

+ grep -vi accurat

+ grep -vi listed

+ export TBS_WARNING=






62.8
61.0
34.4
22.4
11.9
9.9
3.8
0.1
0.0
0.0




0.0


0.0









0.0


+ orastat -ts

+ awk {print $10}

+ grep -vi generic

+ grep -vi ===

+ grep -vi pct

+ grep -vi accurat

+ grep -vi listed

+ export TBS_CRITICAL=






62.8
61.0
34.4
22.4
11.9
9.9
3.8
0.1
0.0
0.0




0.0


0.0









0.0


+ export CHK_TBS_WARNING=






62.8
61.0
34.4
22.4
11.9
9.9
3.8
0.1
0.0
0.0




0.0


0.0









0.0 55


+ export CHK_TBS_CRITICAL=






62.8
61.0
34.4
22.4
11.9
9.9
3.8
0.1
0.0
0.0




0.0


0.0









0.0 65


+ awk {if ($1 > $2) print $1}

+ echo ----- 62.8 61.0 34.4 22.4 11.9 9.9 3.8 0.1 0.0 0.0 0.0 0.0 -----

0.0 55


+ export CHK_TBS_WARNING_EVAL=

+ awk {if ($1 > $2) print $1}

+ echo ----- 62.8 61.0 34.4 22.4 11.9 9.9 3.8 0.1 0.0 0.0 0.0 0.0 -----

0.0 65


+ export CHK_TBS_CRITICAL_EVAL=

+ [ -gt 65 ]



./check_tbs.sh[18]: test: argument expected


+ [ -gt 55 ]



./check_tbs.sh[20]: test: argument expected



Thanks for any further ideas and assistance!
- David



-----Original Message-----


From: oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org]
On Behalf Of Darrell Landrum


Sent: Tuesday, June 08, 2004 8:55 PM


To: oracle-l_at_freelists.org


Subject: Re: awk question




Here is an example of one idea, although there may be a cleaner way. I've
used an ls -l command to get a particular file size instead of the orastat
in your code, then compare that to a previously defined threshold.
Basically, I take the threshold and the ls result and concat them into one
variable with a space in between. Then, send that value into your awk
statement for the test of $1 to $2.




hp19:/home/dlandrum $ cat ak



export WARNING_THRESHHOLD=10



export TBS_WARNING=`ls -l test.ksh| awk '{print $5}'`



export CHK_TBS_WARNING="$TBS_WARNING $WARNING_THRESHHOLD"



echo $CHK_TBS_WARNING | awk '{if ($1 > $2) print $1}'




hp19:/home/dlandrum $ ksh -x ak


+ export WARNING_THRESHHOLD=10

+ awk {print $5}

+ ls -l test.ksh

+ export TBS_WARNING=21

+ export CHK_TBS_WARNING=21 10

+ echo 21 10

+ awk {if ($1 > $2) print $1}



21






Can someone please fill me in on if and how I can use the commented out
threshhold variables(after uncommenting) and reference those variables in
my awk test/evaluation in place of the hardcoded values($10 > 55 or 65).
Thanks


- David



#!/bin/ksh



SID=$1



cd /m1/homes/oracle


. ./$SID


#export WARNING_THRESHHOLD=55


#export CRITICAL_THRESHHOLD=65



export TBS_WARNING=`orastat -ts | awk '{if ($10 > 55) print $10}' | grep
-vi generic | grep -vi pct | grep -vi === | gr
ep -vi listed | grep -vi accurat`


export TBS_CRITICAL=`orastat -ts | awk '{if ($10 > 65) print $10}' | grep
-vi generic | grep -vi pct | grep -vi === | g
rep -vi listed | grep -vi accurat`



echo $TBS_WARNING


echo $TBS_CRITICAL



if [ $TBS_CRITICAL -gt 65 ]; then


        ./orastat -ts|mailx -s "TBS CRITICAL for $SID" dgreen_at_soe.sony.com
elif [ $TBS_WARNING -gt 55 ]; then


        ./orastat -ts|mailx -s "TBS WARNING for $SID" dgreen_at_soe.sony.com
fi






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Received on Thu Jun 10 2004 - 03:49:13 CDT












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