Find apache httpd access_log in current directory and count today's ouput bytes

output_bytes.sh

#!/bin/sh

echo Today is: `date +%d/%b/%Y`
for file in `ls *access_log`
do
        grep `date +%d/%b/%Y` $file | \
        awk '
        {
                gsub(/:/, " ")
#               print $14
                s+=$14
        }
        END {
                printf "%.2f GB ", s/1024/1024
        }
        '
        echo $file
done | sort -nr