Aside from the formatting problems, this is obviously a homework assignment.

My take on your input/output file(s): 

File1:
A Rahul 30 27 
M Radha 45 
S Ayaan 2 30 
T Rayan 72 45 
Z Sindh 4 90 

File2:
A Apple 
B Ball 
C Cat 
D Dog 
F Frog 
G Goat 
H Hen 
I Ink 
J Jar 
K Kite 
L Lion 
M Mango 
O Orange 
P Parrot 
Q Queen 
R Rose 
S Sea 
T Train 
U Umbrella 
V victory 
W Watch 
X X-ray 
Y Yatch 
Z Zebra 

Desired Output:
A Rahul 30 27 Apple 
M Radha 45 Mango 
S Ayaan 2 30 Sea 
T Rayan 72 45 Train 
Z Sindh 4 90 Zebra

[download]
Your prof must have recently talked about techniques to do this? Otherwise this wouldn't be a homework assignment. Please attempt this on your own and let us know what the problems are. You won't learn if some Monk just posts the answer.

If you show some effort on your part, you will get a heck of a lot more help. Ok, one HUGE hint. Read File2 and make hash of its contents. Read File1 line by line and print the desired output for each input line. Show us that code and where you are having problems.

In reply to Re: Content of one file to another file if a filed matches by Marshall
in thread Content of one file to another file if a filed matches by sm81

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