批量检查cksum是否一致

#!/bin/bash

if [ "$2" == "" ]; then
    echo "usage: ./check_sum.sh dir_name checksum_file"
    exit
fi

file_name=($(cat $1/$2 | tail -n +3 | sort -k 3 | awk '{print $3}'))

ref=($(cat $1/$2 | tail -n +3 | sort -k 3 | awk '{print $1}'))

#imp=($(cksum $1/* | grep -v $2 | sort -k 3 | awk '{print $1}'))


pass_flag="passed"
for ((i=0;i<=${#ref[@]};i++)); do
    if [ "$file_name[i]" != "" ]; then
        if [ -f "$1/${file_name[i]}" ]; then
            imp=($(cksum "$1/${file_name[i]}" | grep -v $2 | sort -k 3 | awk '{print $1}'))
            if [ "${ref[i]}" == "${imp}" ]; then
                echo "${file_name[i]}: ${ref[i]} == ${imp}"
            else
                echo "${file_name[i]}: ${ref[i]} != ${imp}"
                pass_flag="failed"
            fi
        fi
    fi
done

echo "INFO: file check is ${pass_flag}"

echo $(date)