Shell Programming and Scripting

#!/usr/bin/python
new = open("new").readlines()
fi = open("file").readlines()
for li in fi:
    li = li.strip().split(";")
    for li2 in new:
        li2 = li2.strip().split(";")
        if li2[0] == li[0] and li2[1] == li[1]:
            print ';'.join(li2)
        else:
            print ';'.join(li)

awk -F";" 'BEGIN {OFS=";"; i=1; while((getline line < "NEW")>0) arr[i++]=line; }  { for(j=1;j<i;j++) { split(arr[j],temp,";"); if (($1==temp[1])&&($2==temp[2])) {$3=temp[3];} }print; }' MASTER

awk -F";" ' BEGIN {OFS=";"; while( getline < "NEW" ) arr[$1";"$2]=$3; }
{  if( arr[$1";"$2] !~ /^ *$/ ) { $3=arr[$1";"$2]; print; delete arr[$1";"$2] } 
   else print 
}
END { 
for ( key in arr ) {
if( arr[key] !~ /^ *$/ ) { print key";"arr[key] } 
} } ' MASTER