Linux process monitoring with bash (project fail)

mon.sh

#!/bin/bash

QSIZE=5
MINLIFE=20

start=$(/usr/bin/date +%s)
btime=$(/usr/bin/cat /proc/stat | /usr/bin/awk '/btime/ {print $2}')

while /usr/bin/sleep 5; do
    queues=$(/usr/sbin/rabbitmqctl list_queues | /usr/bin/grep "create-user-")
    scripts=$(/usr/bin/ps aux | /usr/bin/grep rabbitmq:consumer | /usr/bin/grep -v grep)
    for q in answerhub freshdesk magento phpbb; do
        count=$(echo "$queues" | /usr/bin/awk -v qname="create-user-$q" '$1 == qname { print $2 }')
            process=$(echo "$scripts" | /usr/bin/grep "create_user_$q" | /usr/bin/head -n 1 )
            [ "$process" ] && {
                pid=$(echo "$process" | /usr/bin/awk '{print $2}' )
                [ -d "/proc/$pid" ] && {
                    startclocks=$(/usr/bin/cat /proc/$pid/stat | /usr/bin/awk '{print $22}')
                    hz=$(/usr/bin/perl -MPOSIX -e 'print POSIX::sysconf( &POSIX::_SC_CLK_TCK )')
                    starttime=$((startclocks/hz))
                    ctime=$(/usr/bin/date +%s)
                    uptime=$((ctime-btime))
                    lifetime=$((uptime-starttime))
                    echo $q:$pid:$lifetime
                    [ $count -ge $QSIZE ] && {
                        [ $lifetime -gt $MINLIFE ] && kill -9 $pid
                    }
                }
            }
    done
    end=$(/usr/bin/date +%s)
    [ $(($end - $start)) -ge 55 ] && break;    
done