scripting problem in bash

[ibizatunes]

Im trying to created a script that will clear out /var/logs/ ,and email me when it run
If there a way of converting the FILE_SIZE varaible to a human number like 4GB or 500mb?



#!/bin/sh
DISK_UTIL=`df -h | grep /var/logs/ | awk '{ print $5 }'`

#admin email account
ADMIN="admin@company.com"

#hostname
HOSTNAME=$(hostname)

#mail client
MAIL=/usr/bin/mail

if [ $DISK_UTIL => 95% ];
then


DATE_LOGS=`find /var/logs/ -type f -mtime +5`
FILE_COUNT=`$DATE_LOGS | wc -l`
FILE_SIZE=`$DATE_LOGS | wc -c`

#FILE_SIZE=`$DATE_LOGS |
EMAIL="$(date): Files have been deleted on $HOSTNAME that are older ther 5 days old, quantity of file that have been deleted $FILE_COUNT and the size of the files are $FILE_SIZE"

find /var/logs/ -type f -mtime +5 -exec rm -- {} \;
fi

[cariboo]

You may get better help here.