Here is one algorithm:

• Read file 1 using open
• Read each line using while
• split each line on whitespace in to Name and Number variables
• Store those variables in a hash with Name as the key and Number as the value
• close file 1
• Read file 2
• split each line into a new array
• compare each item of the new array with each key of the hash, incrementing a counter each time there is a match
• print the number of matches for the line
• close file 2

This may not be the most efficient algorithm, but you can try it, then post your code; you are sure to get constructive criticism on code that you post.