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Top Forums Shell Programming and Scripting Breaking if-else loop and variety of comparisions Post 302349064 by EAGL€ on Monday 31st of August 2009 03:30:21 AM
Old 08-31-2009
Breaking if-else loop and variety of comparisions

Hello Friends,

Im trying to write a script to invoke nagios. In order to do this I grep some words that comes from output of some backup scripts. When there is "End-of-tape detected" in directed output logs it should give alarm. First I would like to know if there is any better way to write comparision loops. Second if the alarm condition occurs in a loop there is no need to run the next loops so how can i break loops and end the script right way?

Code:
find . -name ufsdump_output1.txt | xargs egrep "End-of-tape detected" | wc -l > word_count1.txt   
###i used wc-l to detect existance of the words "End-of-tape detected" , i know i could do it with awk but coudlnt be sure###
NUM1 = cat word_count1.txt

if [ $NUM1 = 0 ]; then
echo "TAPE HAS STILL SPACE FOR BACKUP"                  exit 0 
elif [ $NUM1 != 0 ]; then
echo "ATTENTION! EOT REACHED, CHANGE CARTRIDGE!"  exit 2
fi

find . -name ufsdump_output2.txt | xargs egrep "End-of-tape detected" | wc -l > word_count2.txt
NUM2 = cat word_count2.txt

if [ $NUM2 = 0 ]; then
echo "TAPE HAS STILL SPACE FOR BACKUP"                  exit 0 
elif [ $NUM2 != 0 ]; then
echo "ATTENTION! EOT REACHED, CHANGE CARTRIDGE!"  exit 2
fi

find . -name ufsdump_output3.txt | xargs egrep "End-of-tape detected" | wc -l > word_count3.txt
NUM1 = cat word_count3.txt

if [ $NUM3 = 0 ]; then
echo "TAPE HAS STILL SPACE FOR BACKUP"	            exit 0 
elif [ $NUM3 != 0 ]; then
echo "ATTENTION! EOT REACHED, CHANGE CARTRIDGE!"  exit 2
fi

I'd like to find out your thoughts,
thanks by advanced

Last edited by EAGL€; 08-31-2009 at 04:38 AM.. Reason: i deleted a redundant variable in script.
 

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