shell腳本實現兩個文件的逐行對比

 下面是逐行比較兩個文件的腳本代碼。但願你們多多提建議。

#!/bin/bash

CurRow=1
LastRow=`cat file1 | wc -l`


while [ $CurRow -le $LastRow ]
do

    for x in `awk 'NR=='$CurRow' {print $0}' file1`
    do

        for y in `awk 'NR=='$CurRow' {print $0}' file2`
            do
        if [ "$x" == "$y" ];then

          echo "$x" >>result.txt

        fi
        done
     done
     ((CurRow++))
done