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Top Forums Shell Programming and Scripting Comparing multiple variable in if statement Post 302633713 by nathan.harris on Wednesday 2nd of May 2012 10:52:04 AM
Old 05-02-2012
Comparing multiple variable in if statement

Hi there

this script is an atempt to define which instances of Jboss relate to its PID by the date and timestamp I am using calc to test with. On our system the only way you can tell which instance relates to a particular instance is by looking at the start up time and date in a log.

The problem I am having is that if [ "$inst1" == "$proc$val" ] needs to compare with $proc0 the first time the loop runs, $pro1 the next and $proc3 finally in my case. This needs to increment in this way as in theory you could have varying instances of JBoss or calc in this case running.

Can any one point me in the right direction?

Code:
 
#note inst1 and 2 would normally be pulled from pgrep
inst1="09:21"
inst2="11:40"
#pull in the current running instances of gcalctool
PID1=`pgrep -f "gcalctool"`
set -A array $PID1
echo 'Current number of calc running processes : '${#array[*]}
# // print number values in array
#Cycle through processes and get the timestamp for each process match to Jboss instance
val=0
for i in {1..${#array[*]}}
do
        eval "proc$val=\"`ls -ld /proc/${array[$val]} |awk '{print$7}'`\""       
        if [ "$inst1" == "$proc$val" ]
                then
                        echo 'killing '${array[0]}' will shutdown the Jboss Instance for Efin live'
                fi
((val++))
done
echo $proc0 $proc1 $proc2 $tmp
unset array

 

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ASORT(3)								 1								  ASORT(3)

asort - Sort an array and maintain index association

SYNOPSIS
bool asort (array &$array, [int $sort_flags = SORT_REGULAR]) DESCRIPTION
This function sorts an array such that array indices maintain their correlation with the array elements they are associated with. This is used mainly when sorting associative arrays where the actual element order is significant. PARAMETERS
o $array - The input array. o $sort_flags - You may modify the behavior of the sort using the optional parameter $sort_flags, for details see sort(3). RETURN VALUES
Returns TRUE on success or FALSE on failure. EXAMPLES
Example #1 asort(3) example <?php $fruits = array("d" => "lemon", "a" => "orange", "b" => "banana", "c" => "apple"); asort($fruits); foreach ($fruits as $key => $val) { echo "$key = $val "; } ?> The above example will output: c = apple b = banana d = lemon a = orange The fruits have been sorted in alphabetical order, and the index associated with each element has been maintained. SEE ALSO
arsort(3), The comparison of array sorting functions. PHP Documentation Group ASORT(3)
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