Hi , i am newbie to shell scripting and am trying to do the below job,

A shell script to be run with a command like

sh Compare.ksh file1.txt file2.txt 1 2 > file3.txt

1 2-are the key columns
Consider the delimiter would be Tab or comma

File 1:

SK TEST NAME MATHS PHYSICS
21 1 AAA 45 65
21 2 AAA 48 66
22 1 BBB 46 64
22 2 BBB 47 65
23 1 CCC 58 85
23 2 CCC 59 88

File 2:

SK TEST NAME MATHS PHYSICS
21 1 AAA 45 65
21 2 AAA 48 66
22 1 BBB 46 6
22 2 BBB 47 65
23 1 CCC 58 85
23 2 CC 59 88
And return result like,

File 3:

FILE SK TEST NAME PHYSICS
file1.txt 22 1 BBB 64
file2.txt 22 1 BBB 6
file1.txt 23 2 CCC
file2.txt 23 2 CC

Any expert help for this student?

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